Maybe, you would like to buy some magic beans then? LOL Seriously, try looking on ebay. You can often get deals on NOS parts. I've seen pistons and rings on there pretty cheap before, and I'm talking genuine Yamaha. You may have to shop around and buy the piston and rings seperately as that is how they were originally listed, but if you can be a little patient, you can often find a deal. Best of luck with your shopping.
Nicholson 500x (Project)
Nicholson 185s
Nicholson 110 (That takes an atc70 tank)
Ascott 500 head/350x (Project)
Homebuilt Racer Chromoly Suspension 110 (Ragin Runt)
PK Racing Suspension 70
A+ Inc Suspension 70
AWS Aluminum 90 frame
Hi Performance ATC Suspension frame rd350
Hi Performance ATC Suspension frame 90