5/64 & 1/16th ring and max bore size

Take it easy on him. If you didnt know what he was talking about, it's possible you still dont understand his opinion. I know plenty of engines I'd bore and re-hone simply because of the bore finish. .003 is a little big for hypereutectic piston to wall. That might have something to do with it too. It's not always just the cash. I'd talk to him about why he wants to do what he says.