Owned quite a few over the years. They were rank common in this State after Civil Defense shut down years ago. The Government gave away hundreds to municipalities, townships, villages, ect. Most saw very little use, maintenance is straight forward however fuel usage is Astronomical.
Past that you best have a place to park it if you don't live in the sticks.
Price has really jumped on Duces. Up through the 90s I was still discovering near perfect examples parked out in the weeds behind township and village garages for several hundred, sometimes a lot less. Usually you needed a new battery and a flush of the fuel system at the minimum to get them running. After that they were a quick roll over for a fast grand give or take. I'll add that many of the ones that local governments owned if you asked they often had a corner somewhere with New old stock military spares, one I snagged came with two crated engines, three sets of new canvas and two pick up loads of other military spares as that's how Civil Defense often liquidated the stock when they were shut down.
Plenty of these up here ended up being sold for little to nothing at County/City Auctions. Buyers were generally Loggers & Concrete folks who modified them to their needs for skidding stumpage or as gravel trucks. You still see them abandoned in their boneyards.
Why abandoned ?
Part of it was fuel economy, another was extremely poor handling on the older models as well as braking. One Redimix had a duce gravel truck overturn on a flat curve, killed a family in the oncoming lane. Huge lawsuit, after that most insurance companies wouldn't cover modded up ones so to the boneyards they went.
The newer Duces are much improved in terms of basic handling and braking however they remain gas hogs.
one final point is while they can take you through unbelievable conditions their turning radius is pretty wide due to the length more than any other factor and once you get stuck in a Duce you will likely need a D8 Cat to pull you out of the muck, been there and done that twice in my life..
You might want to contact military bases in AZ and ask to speak to whomever is in charge of the public auctions on base and get yourself signed up to receive their listings. Been awhile since I was active in base auctions, late 90s but up here you would regularly see newer Duces, 4x4 pickups and other vehicles at Airbase auctions some of which sold extremely cheap. I know some of this changed post 911 as to what went on auction and what ended up with DRML for disbursement to local and State governments but I kind of doubt Duces would have been affected much.
Anyways I have owned a mess of them. I can't really comment much on newer ones, most of my experience was with 1950s through 60s production. Most of mine I was lucky to get 50 miles on them once they were road worthy again and pressure washed. Always had a couple or more reenactors or collectors on file waiting for the next one to fully rebuild and at the time where I lived they just didn't store well. More than one on my property was a certain visit by some City Inspector.