I removed my grandpas much loved no7 from the grasps of my dad who doesn't get looking after tools. I like getting something that needs a bit of work You learn much more about a plane that way and that first perfect curl you get is superb!
http://www.toolbazaar.co.uk this place is very close to me and if anyone is looking for old plane irons (of the quality stanley variety etc) he lot's I got some excellent bits and pieces from him recently. Including a hugely thick NOS wedge shaped iron to build a plane around!