Do you mean "Richardson Autos" in Bournemouth?
If so, I've popped in there a couple of times and spoke to the owner, he doesn't seem to know alot about supras, for example, one time I stopped by to see what he had in, there was a black GZ (with a bit of body damage) for £11K average mileage and right next to it a white SZ Aero with rough interior for the same money, both '93 cars.
I've seen other supras he's had and to be honest there was nothing too special about any of them, all seemed to be sourced straight of the UK docks without any forethought.
However, I was last over there over 8 months ago, so him and his stock quality may have changed a bit since then.
HTH