Thanks for all your replies so far. I've had some time to cool off and decided I'm not going to take a sludge hammer to the thing:bang:. That wouldn't be very economical either.
I'll try to pull the jug and get some pictures to see if you guys think it can be saved. If not still might try to rebuild or maybe have it done professionally? Unless I find someone with an 066 or ms660 in similar condition for trade. Really don't wan't sink too much more into it though. Looks like I'll need a long torx to pull the 4 bolts. So question so far is do I get this tool at the dealer and then how will I be able to pull the cylinder off the piston without doing any more damage, because it ceased up?
Oh and yeah what would new piston and jug cost?
Don't forget, if you do decide to rebuild, to fix the problem that caused the cylinder to go bad. Clean the carburetor, check the rest of the fuel system, use good oil and the right ratio, adjust the carb right, and make sure you have no air leaks, otherwise you will have this to do over again!