I believe this is a partial list of Overlanders in the US.
Mine - white exterior / blue strips / blue interior
DeLuke - blue exterior / blue stripe / blue ? Interior (or is it black, don’t remember)
Owner ? Chansolo (In OK?) - White exterior / no stripes / tan interior
JerseyJeep - White exterior / tan stripes / tan interior
Firemanhank - Red exterior / black stripes / tan & red interior
formerly cjocho (new owner?) - blue exterior / blue stripes / black interior (former AMC yard car)
Abbott (formerly Buffy) - tan exterior / tan interior (LHD, 1986, intended for export to Africa)
Jambo - unknown colors
Tops only - cj7pilot (no glass) & another forum member has a top with all glass not currently on a Jeep.
I am sure there are a few more in the US, but I don’t recall them. (Heard rumors of one in Austin, but this is unconfirmed.) Feel free to add to the list if you have any info and wish to share.
These are all world cab wagons with the quarter vent windows at the rear, not converted postal van tops.