Look at
www.campmor.com for good prices.
Having done a LOT of backpacking, I already had the equipment; however, I upgraded to a three person backpacking tent from REI to give us a little room.
As for your camp stove, my preference is to use white gas AKA Colman fuel. This is because I have seen the valve fail on the little canisters while hiking in the mountains and would hate for that to happen in my plane.
I use Zrest mattress pads. They are thin, fold up nice, and don't pop.
Camping equipment is one place not to go cheap! Your comfort is very important. Tent, sleeping bag, mattress, and stove are critical.

(Photo by Eric Davis.)
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html