You are going to have to research their patterns then. I don't know if the 3m rep looks at this. I don't think anyone else is going to chime in because they know what you are facing. For a bumper it's nice to have 2 guys that know what they are doing. To buy a one off pattern you may spend as much as having it done somewhere or close to it. One mistake and the whole piece is trashed and you are out $300. Buy another piece and you just paid more than if you would have had it done. Everything has to be right. It's a challenge even for an installer with a few years experience. It's not worth it for this. You would be better off buying a 50' roll and practice bulk installing. I wouldn't suggest it but to buy a pattern will prove to be a mistake for you. Trying to help you avoid the brain damage and loss of time and money not to mention the heart ache.