I paid 3000£ for late 89 registered radiant red with all extras you can have. I think it is 90 spec all about but not the rear spoiler, maybe someone has change it. Car is newer been welded but overspray yes. When i stripped the car there was little rust under battery place and one little soft place in rear floor.
There is some pictures about the stripping process..

http://s2rst.blogspot.com/2008_02_01_archive.html

The car itself was not so good that described in mobile.de advertisement, i bought the car from germany and imported it in Finland. Here in Finland there is no decent original S2 rst left, all boyraced.
I did think also to buy car from UK, but if the thing is that there is no left very many original and mint...+ i have to buy RHD vehicle (here in FI LHD cars)

Sometimes you have to wait even 1 year to find good one, that is good thing you have been looking 3 cars and wouldnt buy one yet.. if the condition was that.