So here is the one that has been in my "waiting for the museum" corner that hasn't made it as we have the almost identical machine there already. It came as part of a collection "as is".
Its an early fixed soleplate model. We'll give it a fettle and service to make sure it's right before it goes. But that doesn't mean a full cosmetic restoration.
I'd want £75 clear for it, so with packaging, Paypal fees and shipping, I doubt someone would see much change out of $200-$250 by the time it's in the US of A.
If anyone is seriously interested, shoot me a PM and I'll do "the math" as you guys say.