I began researching builds and keeping my eyes open for a military trailer to convert. In my craigslist surfing, I found a local home built trailer and bought it. Original owner took a mid eighties 3/4 ton service truck, removed everything from the frame forward of the service bed, bent and welded the frame rails into a v-nose configuration and mounted a pintle hitch. He added a fiberglass topper to the service bed, installing a basic 110v system, rudimentary 12v setup with lighter outlets, and mounted a roof vent and small woodburning stove. Front of the bed, he mounted a wood deck, cargo rails, water, fuel, and spare tire storage. He did an excellent and thoughtful job of including interior drawers, storage lockers, and running carpeting.
Since purchasing, I've mounted a window mount a/c in one of the fold down tool boxes, so all I have to do to leave the dogs in a climate controlled kennel is to open the door, remove generator, fire up and go. When not in use, the a/c and gen are behind a locked, weather tight door. The floor space of the trailer fits a cabela's camping roll perfectly for a dog bed (as seen in picture).
The passenger side drop down tool box has been transformed into a camp kitchen with room for a three burner camp chef blind stove, with the door used as a table/counter.
I upgraded the 12v system to a simple system consisting of a Minn Kota trolling motor box that houses an AGM 27 battery, has two accessory sockets protected by 10 amp circuit breaker, externally accessed terminals protected by 60 amp circuit breaker, and a charge indicator. The external terminals are wired to a battery tender/charger for use when powering the a/c with the gen, or plugged into the garage while parked at the house. The current draw for the 12v system is to run a 64 qt dc fridge. The fridge hasn't been permanently mounted yet. The simple 12v system is basic, and can be completely removed from the trailer within about a minute. I like the setup. Here's a link to the battery box:
http://www.walmart.com/ip/Minn-Kota-Trolling-Motor-Power-Center/20511018
I plan on welding up a rail for a dirtbike just front of the shell/service bed, and will mount the second on a hitch mount rack behind the trailer. The mountain bikes ride inside the trailer while traveling. It has more storage than I have stuff to fill it with, and easily holds all of our gear, leaving the bed of the Truck for our living/sleeping space. We've put in a ridiculously comfortable queen sized latex foam mattress, and I sleep as well as I do at home.
So far, it's been on two trips: Moab and then Fruita, but it worked perfectly. The dogs were cool and comfortable when we were out on long rides, we were comfortable sleeping in the truck without 3 50+ lb dogs with us (we have a vizsla that is neurotic and spoiled rotten, so she still sleeps with us, but that's no different than at home.) Overall, I couldn't be more pleased--and I bought it for WAY less than I could have built it.
The trailer is HEAVY. I don't really feel it behind the cummins, but I wouldn't want to pull it with a light gasser. I only lost 1 mpg off my average from the round trip from denver to moab. It tracks straight, and followed the truck incredibly well in some tight, ugly trails getting away from the crowds to a secluded camp spot. I'll keep updating as I make additions and alterations, but I'll be out enjoying it more than working on it this summer.