how many miles are on the engine? has it been rebuilt before? why is it being rebuilt?
personally the only way I'd NOT touch the crank is if it was rebuilt within ~10k miles, never had any oiling issues and the reason why i was rebuilding it was to put in different pistons/rods. Even then I'd be damn well sure that everything was checked with a micro.
aka, just get the crank re-ground. Its cheap insurance vs having to teardown the motor at a later date because you didn't do it now.