alternative plan.
Try checking some of the dealers web sites . They'll have some on their books ,and youll get an idea of what the trade prices are for what youre looking for .. I know C&W had a couple of 1150 GSA's around a few weeks back, 26/28k and around the £6k mark. might be worth having a look there. Bearing in mind theyll be a bit more pricy due to the 12 months BMW warranty as has been said earlier. Good luck with your search ,,its well worth it in the end when you get what you wanted.
Joe