As for the cam sensor, rotate the engine to align the cam sensor prior to pulling it. You can line it all up using EVIL's method, it works. I'll let him show/describe how it is done.
Then when it's time to drop it back in, it is a piece of cake as the engine is in the correct position. Just need to re-align the oil pump drive shaft to the cam sensor shaft slot and drop it in.
RemoveBeforeFlight