crankshaft wanted

Had a few problems with the motor and sent the crankshaft for regrinding, among other things, and they say it is cracked so am looking for a second-hand replacement and wondered if anyone could suggest places to try as I have only managed to come up with new or re-manufactured ones so far, also need a conrod as well.

Just found somebody who says they have a crankshaft that is good for £60, hope it is OK when I get it checked, so just looking for a conrod now.