I'm sure Vigo will chime in as soon as he sees the thread with his suggestions.
Thank you..
As far as which platform or model to start with..
I honestly think the original k-car (aries/reliant) and its closest offshoots (new yorker, caravelle, 400, 600, lebaron) are the easiest of the cars to work on because of the engine bays. That really doesnt go a long way, though, if you dont like the style, because ALL the k-car based cars are pretty damn simple to work on.
I personally vastly prefer the k-based cars over the l-bodies because as mentioned the l-bodies are one giant step behind in engineering and are more econo-crappy.. i.e. they are rattletraps that like to fall apart, ride badly, be loud, uncomfortable and fold up into a gory mess if they get hit. Most L-bodies are lighter than most k-cars but there are plenty of situations where they overlap. I dont think weight is the end-all reason to get an L-body. They are harder to work on, harder to find body and trim parts for, harder to get traction with, harder to get to hold power (they usually come with weak trannies that need to be swapped), etc etc. Pretty much the only thing they have going for them inside my head is the styling of the 2drs.
But yes, turbo mopars are INCREDIBLY swappable, sleeperish, cheap, torquey, parts-interchangeable, easy to work on, etc.
So if you would like to own a car that is those things, i highly recommend them. You can even get them with a large helping of comfort, funky style, and luxury.