Pre-cut DIY from invisiblemask.com. I started with the easy flat pieces, first. The hood/fender/cups come as a package. Fender is a bit curvy. Mirror cups are as hard as doing the front bumper. Doors are flattish, but large, so get an extra hand to help. Rockers are fairly easy, but the position is awkward, I put my car up on ramps. Plus, they're long, so you need another hand to help. Front bumper was insanely hard, and something I'd take to a pro.Did you get precut pieces or did you cut them yourself too? How difficult is it to do? Thinking about doing the same.