Yea, we used the stock seat pan and refoamed, shaped it and then covered it.
I say we, I was just the seat holder.

He also put in the pleats I reckon it's called.
This is Ed's email if your interested shoot him a picture of your current seat and what
you have in mind. Ed is a great guy to deal with and he also has some ebay
items, such as new seat covers for stock pans. I think he only does the
750F pattern for our bikes but could easily redo a K if enough of the seat was
there for him to tell what it was from the factory.
the_wolfman@adelphia.net
on ebay check under Wolfman's-auto-cycle-seats.
He is right around the corner from me and if you need some help
getting your seat to him let me know.