There are a number of very rare 70's belts out there, by virtue of them only being worn in Vegas (no photography allowed) & / or EP giving them away shortly after using (which was definitely one of his habits particularly in 1972-73).
Your best bet would be to find out the fate of the actual original belt (primary source and / or who has it now).
That said, some private collectors may not be cooperative (for a number of reasons).
- Capt. "EL."
PS - Have said it before, ....... a tip of my hat, Leroy.