I know
EliAlpi have a 2,600 hr Italian-built (Breda Nardi) 500 on offer and there are a good handful of other examples in the usual places.
Unbeatable as a personal transport over short distances with just a couple of people on board. I think the 500 is perhaps the maximum 'fun' you can have in a light single (have yet to fly the Gaz).
Good hunting!