2 in stock both below 3k miles see add on e bay
http://rover.ebay.com/rover/0/e12000.m43.l1123/7?euid=3d32aea68bb1455193fff207ec8a648e&loc=http%3A%2F%2Fcgi.ebay.co.uk%2Fws%2FeBayISAPI.dll%3FView Item%26item%3D221689323303%26ssPageName%3DADME%3AL%3ALCA%3AGB%3A1123

Links not working Malc...

Try 2012 YAMAHA R1 ENGINE KIT 14B BIG BANG MOTOR GRASSTRACK RACECAR HILLCLIMB

One of those would sound fantastic.

Ooh, I wondered when the cross plan crank engines would hit sensible money...