If you decide to buid it, keep in mind that most factory sending units are next to impossible to find parts for (fuel pumps that fit orginal factory tank brackets EXACTLY, fuel gauge sending units, etc) and this stuff usually needs replacement at the time a tank change is required anyway. Complete tank with a current fuel pump design, gauge float, etc. would offer something of value. Direct mechanical bolt up, fuel line, and electrical hook-up would be the way to go. Still, for a truck that was produced for a short time, there are some diffrences from year to year, Rennix or Chrysler.
Red Dog