Welcome to CHR. What Don said. You never know what you are inheriting. In my case dangerous brakes and old rear axle, shot motor welded in wrong, but well! Getting one with a factory frame built by a specialty shop, or in rolling chasis form, that someone abandoned might be your best option. Then you have a place to refernce parts from, otherwise it can be difficult identifying modifications and replacing stuff as needed. Sounds like a fun project!