5.7 Hemi into an older Suburban?

I am a passive Mopar fan - I prefer driving dodge, chrysler, and jeeps over most all other vehicles. I love watching the old mopar cars strut their stuff. But I am not a gearhead, or a hardcore/diehard fanatic.

I had an '05 Durango limited with a 5.7 Hemi, and the upgraded transmission with the towing package, etc. Very solid vehicle. Unfortunately, it was involved in two accidents 3 weeks apart; the first relatively minor body damage, the second pretty major frame damage. As far as I can tell, though, the engine is fine - aside from the radiator being bent out of shape, nothing else seemed to be impacted.

Thanks to an insurance screwup, I was left with no vehicle and no funds to take care of it. A family member sold me an old '93 Chevy Suburban, letting me make payments over time, etc. I knew it had minor transmission issues, but a few days after I got it, the minor issues became major. It also has several minor engine issues - mostly stuff I could fix myself with spare funds and time. But the transmission might be completely shot.

And so I had the bright idea - one vehicle has a solid body/chassis, but a not so great engine and tranny. The other is the opposite. So, why not swap the engine and tranny out?

From a little bit of googling, it seems this is actually probably not the brightest idea. But, I figured I should at least visit a few forums like this and propose the idea to those who know better than I do.

So, should I just abandon both vehicles and try to move forward however I can figure it out to do so? Or should I try to swap the engine/tranny from the dodge into the chevy? Why (or why not)?

Thanks!