I used a a 2 x 4 frame with a single sheet of 3/4" plywood as a work surface screwed to the frame, no paint or finish...it has worked fine. Heigth should allow you to sit on a bar stool for mundane tasks. After mounting your tools, a piece of trim with a raised edge will keep components from rolling off the table.
You should measure the distance from the edge for the reloading press mounting bolts, and either butt the press against the lengthwise 2 x 4 or glue a filler piece between to form the same result. You can mount the tool directly through the top into the 2 x 4 if you use lag screws...if you want to use bolts you must consider clearance for the washers and nuts.