Forget all the uproar about trashing a frame -- I seriously doubt that chopping the frame is in any way the easiest way to get an engine out. Kinda like kicking in and destroying an unlocked door when you could have just turned the knob and opened it.
As was mentioned earlier, you could tilt the thing on its side and have the engine out faster than you can install a sawzall blade and start cutting. Not to mention that you'd then have to unbolt the engine.
If you couldn't lift the engine out of the frame, how'd you lift it onto that couch cushion?