Looks like a really nice example too!! Nice find, they are a lot less common in UK.! So def try to get it stored if you plan on returning. Just be sure to do it properly so it doesn't deteriorate whilst away.
Modding here can be very troublesome =( so maybe just get something you can enjoy for a while.
The websites listed above are pretty much they best way to find used cars, even the dealers advertise some stock there, so if you find one that looks interesting then go to browse the rest. Just remember to get them checked and "you get what you pay for"!!