It should not be too hard to do.
Before I start I should tell you that I put together a range reloading kit very much like what I am about to describe. I also built a very nice custom box for it that was heavy enough to mount the tools to it if I so desired. In the interest of full disclosure, I should also tell you that I have never used it because I have a very complete set-up at home and, well, I am kinda lazy sometimes.
Unless you are a cabinet maker like me, I wouldn't bother building a custom box, a large tool box or two will do. If, when you are away from home, you have a sturdy desk or bench that you can use, this should do you well. If not, a work mate will do fine but I would make a larger top that I could clamp to it. One more thing before I get into my list, some people will and have suggested buying a complete set-up from Lee and, if that is what you want to do, go right ahead. I personally do not like much of the Lee stuff and I think that by buying quality used equipment on e-bay you will get better equipment at or below the cost of new Lee. Also, some people will suggest using lee dippers, to me it would be like riding your horse to work. So, here is what I suggest buying
1) Press-Used O or C frame press like RCBS Junior or Rock Chucker, Lyman Crusher or Spartan, or Hornady/Pacific single stage press. There are also some of the older turret presses that would fill the bill but are a little larger in size.
App. price $30-$50 on ebay.
2) Scale- There are a lot of different scales out there. I use a couple of different RCBS models like the 502 and the 505 I also have a couple others that are hiding somewhere or I gave to friends. Anyway, you don't need something super complicated, a basic balance scale will do. RCBS, Lyman, Hornady, Lee and Redding do or have made scales that you should be able to pick up used for around $20
3) Powder Measure- RCBS uniflow Hornady/Pacific and Redding all make good powder measures that you should be able to pick up used for around $20. I don't like the lyman 55 because it does not work well with extruded or flaky powders.
4) Hand priming tool- I like the hand priming tool rather then the press/bench mounted type. It will alow you to prime cases positively while watching TV or sitting at a computer. I like the RCBS or the LEE tool. Yes I said Lee. The only caveat is that I have broken 2 of them. Get the type with the attached tray, the single ones are sturdy but SLOOOW. $15-$20 I think you can get a new Lee for under $15. If you buy the RCBS you will be able to use the same shell holder in it that you use for in press.
5) Dies- With dies I think you should probably go new, unless you can inspect them, and again I will say it LEE is probably the way to go. If you buy Lee I believe the shell holder comes with it. If not a shell holder will cost you about $6 new. You can get a new set of Lee dies for around $20-$25.
6) Loading Block(s)- I would get 2 around $5 a piece.
7) Tool box- I have a huge Plastic one that would easily accomodate all the stuff mentioned plus plenty of reloading components. It doubles as a seat or step and I believe it is made by MTM. I recently saw someone selling them as "shooters" boxes that you can sit on at their portable bench. You should probably buy the equipment first and then figure out what will work best for you. You might want a couple of smaller boxes rather than one large one.
8) Make a couple blocks to mount your press and your powder measure stand to. As I said before I am a cabinet maker and I like baltic birch ply for this although any thick hardwood will do. I would glue up three pieces of 1/2" thick ply and cut out 2 blocks, one each for the press and the powder measure. The one for the press should be app. 6"x12" and the one for the powder measure stand can be substantially smaller depending on your PM. In any case I think 3"x9" would be good for most. I would then then mark out your piece for your press, finding the centers for your bolt holes. Once you have done this take a small, 1/8" or so, drill bit and drill all the way through. Then, using a 1 1/4" forstner bit, drill in app. 1/2" to counter sink bolt heads on the underside of your mounting board. Use a drill bit slightly larger than the size of your bolt, 13/32 or 7/16 in this case, and drill all the way through. Using two 3/8"x2" Carriage head bolts, bolt press to board. You will want to to do the same with the appropriate sized bolts for the powder measure. They will be substantially smaller in size of course. By counter sinking the heads as I have suggested you will be able to clamp the press flat to any desk flush with the edge. This is important for sturdy mounting. The boards can be removed for storage and, when attached, will allow you to clamp it solidly with only a couple of bar or C-clamps.
9) Get a couple of clamps- I like bar clamps like Bessey or Jorgensen but C-clamps will do and they are smaller. A good 12" Bessey will cost about $12. C-clamps will be about $3-$4 each
By the way, as I was writing this, I was checking current prices on all of this stuff on E-bay, so my prices are real. Of course you will have to pay shipping if you go this route but, ask them to use USPS flat rate and you will save a good deal on the heavier items. I could honestly put together a good outfit including press, scale, powder measure, priming tool, dies and reloading blocks for around $125 and, have a set that will outlast me. You will eventually need other things like calipers and champfering tool but that can wait till later. Also, get a good manual if you don't already have one. Speer is a good one and it is half the size of the Lyman which makes it more portable.
Excuse me now, I have to get back to E-bay, there are a couple things that I think I have to have.
