Thanks Derek. Very much appreciated.
I'm probably going to have a look at this one on Thursday:
http://cgi.ebay.co.uk/1994-SUZUKI-SUPER-CARRY-/140408750473?cmd=ViewItem&pt=UK_Commercial_Trucks&hash=item20b1038189Item No: 140408750473
Apparently it has no rust, but I'll believe that when I see it. However, my understanding is that the engines on these little vans are pretty hardy, if not bullet-proof, therefore if you can get one with little, or no rust you're on your way. Pretty low mileage too, unless it's been around the clock of course.