Worth pulling /6 to "freshen up"?

Well, here I go. So much for the quick refresh. I've completely disassembled the slant. Most of it looks ok but bearings show signs of oil starvation. Plan to polish the crank and new bearings. Cylinder walls look good but there is a bit of a ridge at the top. Not sure if it's worth the machine work to address this. Is there a threshold for how much ridge is too much? Hope to reuse the pistons/replace rings. Dropped the cam off for performance re-grind. The head looks good and was obviously cleaned up at some point and has new seals. Exhaust valves look good and are not sunk in/burned up. How can I check to see if the head has been shaved already? I'd like to increase performance since I've gone this far. Recommended head gasket to use?