First off, Cam, thanks for the template. I was using my Italeri M1A2 as reference (though I have about a hundred pics of the Abrams...) If anything, this is really just a concept project. I've never seen sandpaper used and I wanted to try it myself. I thought about using a surfacer, but decided that I didn't want to spend the money just yet.
As for gluing paper to plastic, Iideally I use CA, but I don't like CA...because more of it sticks to me than the model.
So I'm initially using Elmer's and press it down, taking out the excess that seeps out. The problem was that the longer edges would peel up a small amount, but enough that it was noticable. I then use a small amount of CA to stick them down. I don't know what long-term effects this will have, so we'll see. If it doesn't work, its majorily stuck by elmer's so it'll - hopefully - come off more easily with less damage than if I'd used just CA.
Jeff