It's an interesting take on oil delivery. For me, it's one of those ideas you dream up but talk yourself out of actually doing. Two reasons, maybe three. It's a ****-mess of plumbing. The lack of filtration is also not gonna fly. Finally, I'd have to mull over all the drilling of main caps before I could live with it....that's removing metal in a pretty critical area.
The factory method of feeding the mains from the lifter galley is not perfect, but it does have some strengths. It's very compact and lightweight. It's also all but guaranteed to never leak or require maintenance. It seems that if you pressurize the right side galley with a steady supply of oil, it oughta be plenty good. I'm gonna look into feeding the galley from both ends a bit further; that seems also like a promising idea.If the oil is fed at both ends of the galley, there is no longer any reason the oil should want to fly past #4, refusing to turn.
The guys from the 1970's had a lot of smarts...they also had to contend with a lot of things we don't. Two big ones are heavy pistons and rods, and oil that was pretty close to kerosene. A modern-built engine with light rods and pistons, and modern oil....? It shouldn't require heavy rework...I guess I'll find out!