I was actually going to use card stock, like, go to staples or somewhere and have it all printed out, but I got a little lazy and just used normal paper. If I had it to do over, I would probably do card stock, mainly for the ease of the transition of paper to bond helmet, haha. Ah well.
Update: Been reinforcing more with the strips of metal from the for sale sign so the bondo doesn't destroy the progress thus far.