Theories on my A body

Hey folks! I've got a project car that I am finally getting around to working on.

The car is a 1970 Plymouth Duster.
Was a slant six car that was swapped for a 360 and semi butchered the job. Sloppy welds, ugly wiring and hosing etc. The rest of the car was unchanged from stock. Brakes, axles etc all remained from the 225 config. Sooo needless to say, I gave the little differential and suspension a heaping dose of abuse as I drove the car, as it was from purchase, for a few summers. I was 18. It saw alot of abuse. I put her to bed about 6 years ago, and I have been scheming up all sorts of nonsense ever since.

I've toyed with making a 5.9 cummins biodeisel mad max style road/off road warrior out of it. I have considered the big block club. But just recently I had a brain storm that gave me real hope for a better life for two of my favourite cars.

I own a very very beat up Jeep Cherokee sport. It is still the car I love the most, even though it doesn't move. It's a vintage 96' and the 4.0 still breathes and will run like a monster if coaxed even in its current state of neglect (5years of sitting outside in my driveway)

I think the engine and rear end from the Jeep could breath new life into my duster. I would have to so some modifications to realise the final part of the plan. Go Turbo.

The duster needs disc front brakes, upgraded suspension all around and I have no idea where to begin sourcing.conversions for A bidy suspension conversions and modern updates.

So. Where do I begin?