Chucky, there is a 21SE motor on Yahoo right now with 21,000kms with a buy it now price of 70,000 yen (520 GBP). With this being an SP motor and less than 10,000kms I would guess 650-700 quid would about the right price (could be wrong though?).

There's a set of SP forks on Yahoo too going for 32,000 yen (230 GBP).

I need the servo motor so if you want the engine it will be minus that.

If the prices don't sound right please let me know. Tomorrow I'll prepare a thread in the classified section.