Hy FatTony, without a picture of the engines location relative to the bus floor, I can only make suggestions based on removing an engine from a "P" van. Firstly I would remove the transmission from the engine to make the engine as small as possible and more maneuverable. If you are concerned about height remove the carburetor and chain your lift as close as possible to the valve cover, but leave enough room to turn the engine if you have to. You said you have the pan off, if you remove the oil pump as well it will give you more room, good luck, slow and careful!
