I have a completely rebuilt 1998 (split the cases and replaced every worn part), fresh P4 bore (67mm), new bearings throughout, new seals throughout, new clutch fibers, 1-2 shift fork, head shaved .015", stock ported motor. This motor was ran in the sand only. Never in the mud.
Just add your reeds/intake, kicker, shifter and stator cover and it's ready to fire for the first time today.
$650.00 plus shipping (usually around $50-75)
Buy it and Ill throw in a 28.5mm bored (OEM banshee 26mm left side carb) with it.
By the time you buy a piston $100+, split the cases ($180 labor to R&R), replace clutch $200, bearings $100+, bore $60, complete gasket set $65 and seal kit $45 you could own my spare.
Check out my pics in the BOTM section to see the kinda stuff we ride and run. Im also a 11 year eBay member (Oregondunes) with over 1200 feedback if your concerned about anything.
I accept paypal (verified with over 500 business transactions) and can usually ship within 5 business days of confirmed payment. This item will have to be crated, so will take a lil time.
Sell your motor parts to offset the cost.