I'm honored to have been some inspiration to you, as you've inspired me and so many others.
Interesting, we chose the exact same fitting, and located it in the exact mirror image place, yours to port, mine to starboard.
I'd upload photos, but my old thread is now closed.
Anyway, just like yours, it's a super clean install, looks nearly factory, and plugs in very conveniently, grounded. I run a small heater on chilly days if I can plug in because we get sub-freezing here nights in spring fishing season and of course in early duck season in the fall. Makes for a very comfortable evening, and makes for almost as much fun using my van as I had making it!
The basement is a great idea..do you think the "revenooers" in your mountains will ever look there? ;-)
Cheers, Guy