Well, you don’t see it done every day, but you could put together a wet sump, single stage, remote oil pump affair that would be much less costly than a full dry sump. Use just the pressure stage of a dry sump setup.
Plumb the suction side of the pump to the existing sump. There is a Russell Racing fitting for Chevrolet power steering pumps that has the same SAE thread as the sump drain plug and AN dash 8 or 10 on the other end. Plumb the suction side of the pump to that fitting. Plumb the pressure side of the single stage pump to a remote oil filter and the outlet of the filter to one or more of the main oil galley ports that run down the right side of block. That would eliminate at least two scavenge pump stages. You would still need the drive mandrel for the crank snout, but only one toothed pulley. It could work.