Help with rebuild? what to do??!?!
 

so my b7/z6 mini me is sitting on the floor, beside a z6 bottom end.. the bottom had a bad head an the mini me is just sucked out, gutless.. im not looking to spend to much $, or do anything to right. but i definetly dont want to be blowin smoke, or gettin passed by kia's. ive been looking at a 120$ P29 Piston/ring/ an bearing set, and a OEM replacment one, an just rings, what should i get? do i need pistons? or can i just replace the rings? i'd like the higher compression p29's,, im not o worried about wrecking it.. an is valve seals, cam seal an stuff like that all i should do for the head? kind of christmas fund rebuild type thing..