Then buy it from the guy at a steep discount, jam it in YOUR motor on YOUR dime, spin it to the moon, and be content.
It's not the balancing that concerns me. It's the piss poor machining, potentially weak welds, and the fact that crank harmonics are a thing. I'm not even sure that those two holes don't intersect at the bottom.
I've never balanced a crank but I've handled a billion that didn't have half assed crap like that done to them, and I've yet to see a 100,000 mile crank that DID have that kinda crap done to it on day one.
Sorry, but if Ying Chao can't be troubled to center up the drill bit in center of the counter weight, I ain't gonna trust anything else he's doing, either. That's me, and my policy. If you disagree, that's fine. Spend YOUR money on it.
