In my youth I rebuilt a lot of engines both proffesionally and for roundy racers. We need to know exactly what finish is on these journals. Plated? i doubt it, or just what surface treatment (coating-I doubt that one too). Most cranks use some sort of surface hardening, carburizing, etc, Honda might call that a "coating", but it's not. The depth of surface treatments vary and perhaps is only .005 on a Honda crank (if memory serves, I think it's about .015 normally). That would be why they say you can't turn. On US OHV cranks we would turn .010, 020, or even .030, although .010 was all for a top level engine. But of course any bearing we wanted we could get, in fact we sometimes had them made special. Turning an NSX crank thru the hardening and finding .010 bearings would probably be fine for a stock engine. A good shop, and I would recommend finding a local race engine machine shop, and they are NOT hard to find in my city, CAN reharden that journal, although we are getting into an area where you can't be sure what you get. Welding up journals is something these shops love to do (lots of labor), but thats generally only done when you can't get a new crank. It just messes up the metalurgy too much for a high performance engine(it CAN bend the crank at that journal). Again, a stock street NSX, I'ts probably fine. We need someone at Honda, or someone like Shad Huntley to tell us what we are working with. I have a 3.2 with spun #2 and a slightly scored crank also that is gathering dust. Regarding the 3.2 into your 92, do more searches, there were some highly detailed posts from those that been there. $7500 for that engine and tranny at these exchange rates? I would only do that one on a COD! Good Luck!