R33 crank has a full width oil pump drive, that match's the gear set. You can get a collar from JUN / others, or locally made, thats then pressed onto your BNR32 crank. Considering the cost, it must 100% be done. Popular topic on SAU.
Rods are generally fine to 400rwkw+, the bolts can fail though. IMO, bolts are there to keep the rod caps on and are really only subjected to load from the rod / piston inertial weight. I'd think even stock rod bolts should last if not over revved (increased inertia)