Freshly Rebuilt 59AB Help Needed, Near end of my Rope

[anothercarguy]

First pic shows the non-drilled boss where the 95% oil filtration mod would require a return line, 2nd pic shows where the supply for the filter is usually connected (but now has the mechanical gauge connected), 3rd photo shows the fuel pump rod bushing in place (green is a bit of grease when I first installed the fuel pump rod), 4th shows the front fitting of the oil pan where the oil filter return line was connected and the last photo shows the inside of the oil pan at the oil filter return fitting.