Is it definitely leather?
Difficult to tell in the pictures, but it seems in remarkably god condition. Is it MB-Tex?
On the facelift cars, the way to tell at a glance is whether or not the doorcards are ruched, but I don't know about series 2's.
PJ
Funny he says one electric window doesn't work. I'll bet it's the NSR. So many of these seem to have that window fail...