Hey mate i was there a couple of week back helping a friend look for an evo. Very rough cars to saay the least. Dodgy rattle can patch ups on the undercarriages to cover what i assume to be surface rust, over spray in wheel arches etc.... My advice would be to go down and have a look for yourself.
I personally wouldnt buy a car from there, very untrustworthy mob. I know a whole bunch of evo blokes that bought their cars from there and managed to get their hands on the japaneses de-reg papers and lets just say some of them are considering taking legal action.