For Kev...and other forum members..
http://www.raptorforum.com/forums/sh...d=1#post884714
686cc CP 11:1 Piston
Hotcams Stage 3
HDD +3mm Throttle Body
OEM Base/ (Head) Gaskets
Tensioner Gasket
$500! plus Shipping + Duty

( �325!!! )
Deal ends New Years Day (their time) don't forget that is for a Raptor TB...but I am sure if you ask nicely he may do it to your XT TB.
if anyone is interested, pm dl700 (Dan- High Desert Dyno in the States)
You would need to send off your cylinder for a rebore and plate the liner, Langcourt UK (
http://www.langcourt.com/page16.html ) is your best bet, around �120. Job done.