Robert,
A guy a few blocks from me has what he said is a 1964 Unibody. I've looked at the truck and the door tag indicates it a 64 but I don't know if everything is correct on it.
He's had it for years under a shed and says it's for sale but he won't put a price on it.
I think he's waiting for someone to make him an offer he can't refuse.
Is 63 for sure the last year for the Unibody?