1 wire internal or external oem alternator

I run a 1 wire alternator on my Duster after installing an American Autowire harness. If you’re not planning on running a stock harness you probably want to run whatever style alternator the new harness is designed around. I personally wouldn’t put a stock style harness in anything other than a numbers matching restoration, pretty much anything other than that and you’ll want more circuits than was stock on these cars. And depending on the build you may want a higher amperage output than you’ll find easily with the OE style alternators.

My battery and cut off switch are also in my trunk, 1 wire works fine if you set it up right.

As for finding a 1 wire alternator “in the middle of nowhere” it may be easier than finding a 70’s Mopar alternator. 1 wire alternators are OE for a lot of makes and models. The number of 70’s OE mopar parts you can find in stock and on the shelf gets shorter all the time.