well it all depends. like you stated earlier one or moire of the rings are fugged up, causing you to burn oil. It really depends on you. the rings are around 110 from
www.summitracing.com, but if u take the engine apart you will need a new gasket set for another 250, and rod and main bearings another 150 both. Depending on your skills you can rebuild it or you can get a swap.