Some good points there. Folks from outside often don't realize how huge this state is and how diverse the hunting environments can be. Frankly a person can live here their whole life and only experience a small part of the Alaskan wilderness (and I'm not even including Spenard).
On the plus side, you don't have to spend all that much money. If you have the time and you've done the research you can keep your costs to a minimum. Check the Alaska hunting forum to see what's hot:
http://www.outdoorsdirectory.com/akforum/akhunting.php
Also, I'd suggest keeping an eye on the weather as your date approaches by checking the National Weather Service site:
http://www.arh.noaa.gov/
Winter may come late, or it may come early. September is not too early, even for south central. If you get caught out in a spike camp unprepared you will be entering a world of pain.
For equipment in addition to the usual, I'd suggest ditching all denim jeans. They don't insulate worth a darn and they hold tons of water on your skin if they get wet. I find poly fleece pants work great for September to April, and shorts work best for summer, at least in SC. Get a good pair of insulated hunting boots such as Danners. Bring about 10' each of leather cord and parachute cord. Bring electrician's tape and duck tape. The electrician's is great for making tight repairs to backpacks, firearms, and all kinds of things. The Duck can be used to seal off your boot tops when crossing wet areas, keeping your arm together after a bear attack, or to tie up your camp mate in preparation for the ritual sacrifice to the ducktape gods.
Carry lots of lighters, both windproof tube style and disposable. If you can, carry a sealed canteen of diesel fuel or kerosene, with which you can make a great many very effective fire starters out of found wood or old cloth. LED headlamps are extremely useful during the fall and winter when the light starts to fade. Even better is a carbide headlamp, esp when the cold starts to kill all your bttys. And I'd also suggest swinging by AIH and getting a pair or two of gauntlet-style industrial rubber gloves for when you get lucky. I've found those work much better than the little disposable kitchen-cleaning gloves for those times when you have to embrace the innards of some animal and there's not a change of clothes in sight. Bring several towels and a big pancho, because you will likely be getting wet. Honestly towels and a pancho have made the difference between a miserable trip into the woods and a tolerable one many times for me. With just a pancho and some towels you can make yourself a nice shelter. If you can take the weight, you'll really appreciate having two or more Army surplus wool blankets to bolster your sleeping bag and protect it from any nearby flames. Finally, get an inflatable mattress or something to keep your body up off the ground at night. The air might make you chilly, but the ground will sap you completely when it starts getting cold.
Oh yes. And bring DEET. Lots and lots of deet.
And don't bring anything too valuable. I've found that if it doesn't break up here, it will probably get lost.