Rehone the cylinder.
You better hope your crank is good.
You better hope your block is good. If it got low enough on oil pressure/oil then you coulda fucked up the mains.

What bearings did the dude use when he built the motor?

I know nothing of these motors but I can lend you a hand in some way.

Get new rings and bearings. Take your crank and block to abacus and get seth to check it over.

-Jarrod