There's a 10 speed Raleigh Pioneer up for grabs at the recycling centre in Witchford (
http://witchford.revivemarketplace.com/)
Looks to be a 22 inch frame, there or thereabouts, and barring some cosmetic rust spots on some of the chrome (brakes mainly) seems to be in very good nick. Paint on the frame appears immaculate, I couldn't see any scuffs at all.
They're asking £70 for it, which is perhaps a touch on the steep side for one of these, but on the flip side, whoever had it has looked after it pretty well. A clean and grease and some air in the tyres seems to be all it needs.