Yeah Michael,you could be right to mate it's not uncommon to 2 door a custom either,my mate here did it with an FJ,lots of fabrication involved.I know what you mean about the Buicks my mate had a 50 2 door,used to ride around sometimes in it with him,bloody big beautiful whale of things they are.Yeah I guess we'll never know unless we talked to the guy who built it.I might do a search on it,see what I come up with,I have seen the car around a fair bit on the net