Thanks very much for all this help so far.We've gone past the 60 day limit on the ebay complaint thing, sadly.
The agancy I got intouch with was really interested and is offering to help if at all possible, and I have had other offers too. (Hope you got the replies!)
I've just sent a mail to the dealers telling them this and suggesting we save ourselves a lot of trouble by sticking to our word. Let's see what happens.
As for posting their name... Would that be OK? I don't want to open up this community to possible charges of foul and infamous blasphemy and slander. (I think that's what lawyers call it.)
rgds
Phillip