After going through 3 race engines with failed/deformed rod bolts I won't pull one apart anymore without replacing the rod bolts with ARP's. I know a lot of people do just fine with stock and I admit these are engines in race cars (although the internals are basically stock), but it still indicates to me a weak link in that bottom end. Suprarich would be delighted to send you a set for less than $50 + Frt. Cheap insurance to me.
I second the notion of probably NOT polishing the journals. Just clean them up, mic them to make sure they're in spec and so you can choose your select fit bearings, and put it back together. You can make a crank that was acceptable to use suddenly not acceptable if you've never done the before and aren't extremely careful.
John Stricker