On Ebay I came across a special version of a Seat 850. An "abandoned" one. I think it is a nice find, which will fit perfectly in my display cabinet, together with my other 850 models so I purchased one immediately.
Verwaarloosde Fiat 850

Verwaarloosde Fiat 850

There a still various sellers which have this model available on EBay. Prices and shipping costs vary widely, as usual.