It has been a while since I posted and updated this thread, but that doesn't mean there hasn't been progress.
I did post in another thread on page 12 -
https://sprinter-source.com/forums/index.php?threads/89088/page-12 - some of the challenges I had with the alternator installation and documented some of my basic electrical install.
I will try to summarize the changes here, but many of the details are in the other thread.
The Nations 280A (N62 option bracket version) is installed, wired and working. I chose to run both 2/0 positive and ground from the alternator to the Wakespeed regulator mounted in the back of the van. I wired everything using weatherpack connectors at all junctions and used cable glands for everything except the temperature sensor as that had a factory connector on it and wouldn't fit through a cable gland and to make matters worse, I didn't account for that when drilling all the holes. Ooops.
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I also ran a round 10/3 marine cable through the rear quarter panel area using a factory location (it exits near the rear hitch) for the shore power connector. Temporarily ty-rap'ed the cable for now until I can make the bracket and my smart plug arrives (like everything else - back ordered)
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