Looks way better kept, and cleaned. Similar mileage.
2 into 1 jardines. easily jetted for.
original color and patina. (you wont have to deal with a bad rattle can paint job)
yeah, the seat sucks, but you cant win'em all
expect to spend $150 (fiberglass cafe seat w minimal padding) to $300+ for an original
LOTS of seat choices in between....
Offer $800 and see what he says. $1000 would be about right for that one.