it's pretty easy to burn through $4000 on an engine rebuild, especially if doing hoses, belts, oils, fluids etc.. (add heater core and radiator into it .. just keeps going up)
My old Neighbor (old in age, and old as in previous) used to undo the oil pressure switch and pump engine oil in there to prime the oil system on some cars.
if you left the manifold off and got creative you could use a drill to prime the oil system by either making up a hex drive that fits the drill into where the dizzy goes, (might be able to buy one even?)