May be better chopping yours out and buying an S1.
Look at this one
http://bbs.rsownersclub.co.uk/showthread.php?t=73548
This to me is s very good price on an S1, looks very solid which is the main issue on these, some nice engine detailing, a good set up should see it running properly and a couple of hundred quid to sort the paintwork bits out could see you in a very nice S1 for not a lot of money.