Just bought one for £250 only done 150k which is only just run in for that engine. only problem is smoke at idle after its warmed up but should be.a.cheap fix
Dunno if you're aware, but here's a useful site. http://www.volvoforums.org.uk/index.php
Seems to be alot of knowledgable people on it, and no idoits. I'm on it myself, despite lack of Volvo ownership!