Two other things I should mention, pertaining to warping:
It is tempting, when putting in center sheeting, to make the last little bit a tad oversize, and really jam it down. If you do this, and then go over it with Minwax, it'll swell and warp badly. So think ahead.
If you're doing a profile and the fuselage gets bent as it's drying, try gently heating it and bending it against the warp by about as much as the warp. Let it sit overnight, and see if it springs out straight. I've done this on a couple of planes with the Minwax/Rustoleum finish system, and they've come out straight. I've even had one that twisted in the sun that I successfully twisted back straight (and one that I couldn't -- that one I had to cut & glue to get it back where it belonged).
You will not get as nice a finish as a top-notch dope job with Rustoleum. But you can make it pretty good, quicker and with fewer smelly evenings.