A v6 Curiosity

no
I know that, technically, this forum is about putting new hemi engines into old mopar a-bodies. But new Hemi engines are expensive. My current duster has a 225 /6 in it. And currently, I'm at a cross-roads. I'm about to pull that engine out, and at that point, there's plenty of options on what I can do.

I've thought about just cleaning it up and putting it back in after I've painted the engine bay.

I've thought about trying to tune the /6 six up a bit.

I've thought about putting a small block v8 in it.

I've thought about fitting one of the smaller big block v8s in it ( a 383 or something).

I was discussing all of these options with my father. All of them will be work and expense in their own way. (some more than others). But then, he said something I hadn't thought of.

The new Chrysler V6 engines aren't exactly slouches. Especially the new pentastar. But even just the 3.5 would be a vast improvement over my current. I've checked, and I can get a vehicle with body damage and a perfectly running engine for around one grand.

But is this really as easy as my Dad's making it out to be? Will there be things I need (other than obvious things, like engine mounts and such), that I can't get from the salvage vehicle? Is it worth it? All questions I thought I would pose to this particular forum because, well... While this board is technically about putting Hemis in Dusters, it is, in essence, about putting newer engines in older cars.

And frankly, I'm new to most things mechanical. So. I wanted to know, beforehand, what I was getting into, and whether or not this was even a viable alternative.

I did a search, and can't really find anything.

So. Oh wise frequenters of the Hemi Swaps section, mind helping a young gun out with the theory on this one? I could really use your experience ^^
one has mention the bullit proof 3.8 4 speed auto that jeep used.