Have you read Cboy's eBook and all of his posts. Click on the eBook at the top of the page. In the old days ( The 50's for me) we used a lot of parts off our donor cars, and there were a lot of old cars left out in the brush, free parts, where everyone dumped their trash. A guy I know worked at a custom shop in L A, they would remove the metal skin from the donor body and make and install custom fiberglass skin to the body sub structure. that way you had all the inner workings. wiring, steering, brakes, already there.