2m4, I think that you should look at putting up a inverted U frame (youll need to acquire one more piece if I beam) and just get some sort of pully and come-a-long to lift the car. Im not sure a crane is the safest idea, but then Im really not sure what you have in mind but What Im thinking should turn out like this...
I | I
I | I
Even something like this should be an A-frame, but if your going to sink the I beams 5.5' deep and concrete them, you should be OK.
Thats just .02 from an Electrical Engineer
Ive removed the transaxles by using a cherry picker hooked to the trunk latch. Ive also done it using six concrete blocks, 2 floor jacks, and 2 jack stands.
Shiner, were you humming "dueling banjos" when you wrote that?