Being a Marine, I would probably look else where for a deuce, I would take a 800-900 series USMC 5-ton however just for the lockers. That's a very nice plus.
The Marines are usually stationed near the ocean, and they practice beach landings, so their vehicles spend way more time in the salt water than the Army's and Air force. I woud think SeaBee's vehicles would be as bad, or worse rust wise.
When I was in 74-78, we had M35A2s (or A1s?)
they did not have the paper clips nor the welded on reinforcements around the beds "hook" where the lifting bar would mount.
About 10 years ago I bought a derelict 1953 REO, USMC M35 gasser for scrap here in Phoenix. It was a winch model, the winch and drive shaft were gone, but the bumper/extentions/pto were all there. I got the truck for the price of that stuff. The front bumper did not have paper clips, but the bed had the welded on reinfocement around the "hook." But more amazing was that the rear lifting bars that fit inside the "hook" were still there.....COOL!
Needess to say, I drug that beast home, I had plans to restore it. But a few years later I picked up a nice deuce from a gentelman near March AFB in CA, Mark Blair, I believe. It was a 1953 REO also, but had been converted to A2 specs, except the dash kept the original data plate. The truck was undercoated.
At that time I thought only Marine trucks were undercoated, but that isn't true I found out. I stripped everything off of the gasser like the pto and winch bumper, and the hood, and put it on my 53 A2, I sold off the gasser residue for what I paid for it (one of the few times I didn't lose money!)
I cut out the reinforcements for the rear hook, but haven't welded them on yet, and I need to get some paper clips made up, and I've already installed the Marine hood, so once everthing is done, a new paint job, and some Marine stenciling and my Ex-Air force, CA N.G., Army truck will now be a Marine truck.......just because I can.
BUT it's virtually rust free because it WASN'T a Marine vehicle.