Wow, ok thanks. I wasn't really with you at first, but I am now. So, would you carve some foam to be the bas for the form fitting seat, them cover it with masking tape and paste as the base for the pan? Once I have the pan, I would imagine that the seat would be similar to a custom bike seat? Anyway, I think I am on the same page, as I would be worried about the seams of anything that was not supported. The tooled leather cover over a fibreglass pan makes way more sense.
Thanks