I was contemplating doing it myself but I refuse to put a partial hood ppf on my car. It just looks like complete ass if you can tell where the coverage stops on the panel because there would be such an obvious seam
I have done a few different cars myself over the years. But I totally screwed up on the front bumper for a Scion FR-S I once worked on. I wound up buying another piece of PPF just for the bumper and paying a shop to install just the bumper. The TM3 kinda looks doable though.