Aaaand we got oil pressure again.
So it seems that for some reason an 80psi pressure sender is not a common part anymore. The Borg Warner catalog only lists a sender rated for 100PSI for the Eagle and pretty much every other car made by AMC, Jeep and International Harvester going back to the 60's. TSM doesn't specify anything either. It also doesn't list the scale resistance and at the same time I've never seen a factory oil pressure gauge on any car for that matter that was scaled for 100psi. Only the aftermarket stuff.
Anyways, lets assume that the variance in range resistance between the 80 and the 100 is about 12%, so with a reading of 63psi I should be seeing around 50psi which for a hot idle should be excellent and if I compare to other people on the internet, should be fine for quick visual indication and MILES above all these randos seeing stuff like 13psi at idle.