Thanks for all the comments.
I am going to put an oil pressure gauge in the port with the yellow arrow of picture 2. If logic is correct, with the dowel not diverting the oil flow to the green arrow hole of the 3rd picture, I should have good pressure there because otherwise that hole would be getting return oil from the oil filter. Going to take a few days to get to that point of cranking the engine over again.
Picked up some original 41 Chevy 2 piece windshield glass today. Will try not to crack it.
Thanks again all.
