If you'd rather go a more tried and true route, I'd suggest looking at this thread: get an idea of where the 501st gets most of its TK armors. If you still want to go through with it, I know where to find TK pep files.
When I first got onto the FISD, I was planning on doing a pep build, and I was quickly warned away from it. The armor often ends up being heavy, expensive, uncomfortable, and inaccurate. Hey Kevin, we don't actually generally suggest the use of Pepakura for armor builds if you're trying to join the 501st.
