47-55.1 1947 3600 Gas Tank Relocation

[Dachshund]

I've done a search, and found a lot of good info, but not EXACTLY what I was looking for! I am thinking about moving the tank to the rear - "between-the-frame-rails". I am also thinking of the filler neck under the license plate. Any ideas or thoughts? I have the stock frame with no spare tire carrier. Also, a "home built" bed, so I can move it up if needed. I am trying to stay away from "in bed" filler necks, and don't really want it out the side.