juming into to Ditch's thread a tad here, but... you're in England, he's in Ireland, it'd be a bugger to get it over there, and he has stated that 500cc is too much power. there's also insurance to consider, lower the cc, lower the premium. i'm pretty sure if he'd been interested in it, he'd have pm'd you afer your first post...
if you're that desperate to flog it, pay your fiver and stick it in Buy, Sell, Swap.