Simple Question: Do you like to install the engine in the frame, and then the top end? OR... Do you like to install the top end on the bench, then the entire thing into the frame? This is my first rebuild on this specific bike, so just wondered what experience thought was most effecient. Also, is there anyway to "prime" the oil system? I oiled and lubed everything up pretty good on re-assembly, but want more lube for initial start up.