Okay, here's some of an update for him.
T-stat was stuck closed on the trip home so he pulled it and removed it. At home, the t-stat was replaced with all of other cooling hoses.
Hood latches were replaced (I think, or they are on order.). Brush guard pins were replaced as they were too short.
Electrical work was next. Wiring was removed for the overhead PIAA lights and those will come off eventually. The side marker light housings were replaced, as were the headlights, tail lamp assemblies and rear marker light bulbs.
Driver front door was disassembled to fix the window track.
New military-style exhaust stack was fabricated. The existing exhaust exited inside of the passenger rear wheel. An extension was fabricated with a flange attached. That flange attached to a new flex couple, which continued in front of the rear wheel, outside and up the outside between the rear door and the rear wheel. Custom mounts were fabricated to attach through the Hummer Dan skids and the fender lip, as well as under the fender like the OEM mount. The exhaust was wrapped with rolled expanded steel and all painted with HVT flat black.
New injectors are on order as the H1 starts up fun and runs great, but on a warm restart it has some issues with long restarts. Most of the time it runs great, sometimes it doesn't.
Leaks are pretty minimal and it didn't use any oil on the trip back from TX, though it has used some since. It gets driven daily to work so it's getting some good exercise. Maybe if we're lucky we'll see him on Live PD some Friday or Saturday night.
Many more projects in the works including getting a spare tire mount inside the bed like on Dave's '92, new radio, fixing the a/c, new window tint, working on/replacing the transfer case shifter (I think), and other stuff that I cannot recall. Maybe some ghost flames down the side.