no oil pressure

Should take you about 3 minutes to find this out. YANK out the distributor. Take a screwdriver and TURN the distributor drive gear. I forget which way but it won't take long to find out. One direction will result in it "walking" itself up and out off the cam. Bend a coat hanger and hook under and pull it out. You will soon know if it's broken.

The cam gear can drive the distributor, but the oil pump is BELOW that

Very first thing out of the pump is the filter. If you get nothing with the filter removed, you have no oil pressure at all