Should I make the swap to G3?

Some goals: No oil leaks. No matter what I do, I still seem to have a very small oil drip after putting some miles on it.
I have a 6.4 sitting in the corner of my garage I can’t wait to build and install just to get away from all of the stupid little oil drips my SBM seems to sweat. The other plus for the G3 is the booming after market. There are still some pricey aftermarket pieces (like camshafts) but that’s offset by cheap, readily available factory aluminum heads that flow unbelievably. The aftermarket has more critical mass compared to SBMs also with all of the demand from the guys with g3 based modern muscle.