alex made a habit of dropping the ATX on the turbo green car. i dont think its any less work to go out the top w/ the engine tranny, and its probably more work to go out the top.
the only hard part is the vss (i think) which is in a ******** spot on top of the trans.
Just set yourself up with plenty of wood blocks and jack stands so you can move the trans up / down and the subfraem up/ down a little at a time. Neither of them balance quite well on a single jack
the engine can be held up with an engine support bar and a few ratchet straps, which are quite handy for allowing the engine some jiggle room for aligning things.
Pm Alex, he's at the point that he can do an ATX alone, on his back, while blindfolded, which is part of why he sold the car, lol