I believe most of your list you could accomplish without dropping the motor. However, its not too bad a task. Its a lot easier than you would think.
This is the thread on my first drop. Which has resulted in an ever expanding "while I'm in there list"......
http://forums.pelicanparts.com/showthread.php?threadid=310898
A partial drop is great to get at the back side (top) of the engine.
Good luck.