For the oil pump, I have always just put a little assembly lube and a couple drips of oil on the moving parts when I assemble and then crank the engine over for about 20 seconds with the coil wire unhooked to get the oil primed and up into things. Never had any issues with this method.
If you can force oil into the galleys it sure wouldn't hurt, but the assembly lube seems to do it's job.
