GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
Find and old Chevy distributor (V8 or V6) doesn't matter year or anything else. Then remove the gear, cap and rotor and hook your drill to the upper shaft. May take some grinding to fit your drill. Make sure all the grindings are washed off before use.
I have no idea Tony, he asked if there was a chance, and I said there was. I have no clue who rebuilt it, if assembly lube was used or just oil, or how long it's been setting. The bearings could be dry as a bone and no oil in the passages or filter. What do you think would happen if it was dry and he cranks it over 10 or 20 revolutions before the oil pressure builds up?
The oil pump shaft has a slot in it. Find a flat blade screw driver that's long enough to extend up far enough so that when it's engaged in the slot, there is enough sticking out of the hole when the handle is removed to chuck into a 1/2" drill motor. Use a fairly heavy screwdriver with a 3/8 or 1/2" wide blade to avoid breaking the screw driver.
For you naysayer's I've been doing it this way for years. I don't think I know of anyone that builds motors that has the special tool.
Just in case though, (trying to cover all the bases here) -- The oil pump shaft is hardened and won't break and I've never broken a screwdriver but if you did you would retrieve it with a flexible magnet pretty easily. You do it the same way you retrieve a distributer shaft pin or broken distributor/cam gear.
You have to have the distributor housing in there to connect the oil passages. using just a screwdriver in a drill will only oil some of the main and rod bearing. Nothing for the cam and lifters.