It’s an interesting place, for sure*. I also like the real sheepskin seat (scroll down to the bottom). Plus, there’s a green-white Miyata seat. Maybe that could be adapted to a very particular Hatchet? Anyway, I digress, as usual.
*EDIT: There’s an interesting take at a freewheel uni. Not suitable for disk brakes as it is, but a refreshingly different approach, in my opinion.
EDIT 2: Lots of other cool stuff, too. https://sillycycle.com