This method worked flawless for me this past spring. It took me about 24 hours of labor to pull engine/trans, rebuild engine, rebuild suspension and brakes, reinstall engine/trans and run some new wires for a top-swap. Did it over a 3 day weekend with air tools.

I am in the minority but I dropped the engine/trans in with the front and rear header installed. Had to use the engine leveler and push the a/c line but it wasn't too bad. I think I had the radiator pulled too but can't remember if it was in or not at the time of install. Did a flush and clean. I remember it being a tight fit and going slow not to damage anything.