Thanks recon, I am glad you like the unfold I did on it! hope to see a few pics on your project if you decide to start it. i went ahead and started to fold it in between my breaks on my current project, haven't gotten very far lol.
You don't need those pieces. You only need the pieces that already fit in the pages and whenever you find left and right side you only need 1 side template and then you flip the template for the opposite side.
Because the paper in pep designer doesn't match the paper in printer setting so you should try in the menu bar " file > printing and paper setting > paper size letter > top margin set to 5 and side margin set to 5 > then OK " this should work or make sure the paper size match.