Yup, we know how to get er done, eh! :slurp. Now, regarding that piston. Experience has shown me that if you have gone this far into the motor and it looks like that, it is probably worth the money to re sleave it. That being said, measure the bore for oversize, taper and out of round, check the specs. You may get lucky, or you may be able to buy an over size piston and bore to it´s spec, the best and most economical option. Most important, try to find out what caused the scratches in the first place :huh. Piss poor maintinence, or did something let go and rattle around in there? Have fun Mezo!