Remove the doors & take a 4x6 and put thru the door opening at the front near the post, that's going to be your bal. point & use your cherry picker in reverse.....it will push too ya know, lift it up & shove the chassis out from under it. Easy, do it all the time.
You might want to strap the cherry picker to the 4x6, they tend to slide if you snatch on it.