Here is what my brother found:
"Those are standard radio tags. Typically used when rail shipping unit equipment. This truck most likely went to JRTC (Joint Readiness Testing Center) for pre-deployment training. While it's not 100% conclusive, the serial number didn't show up under the W90KNQ customs code, so it likely hasn't left the country or seen combat. Further history (See paragraph 3) supports that, as it was wearing a garrison paint scheme as late as 2006, and TPE (Theater Property Equipment) has been in place since about 2006 or so. It was deemed inefficient for units to continuously ship their vehicles back and forth, so there is just equipment already there to fall in on.
You are correct in that the truck was designated as a Patriot Air Defense Guided Missile System. From the unit identification code (UIC) information, the truck belonged to the 108th Air Defense Artillery Brigade, Fort Bragg. The bumper number (HHB 76) indicates it was assigned to Headquarters and Headquarters Battery. This is essentially the command and staff/support and administrative battalion. Your truck was also an SRPT (Small Repair Parts Transporter) which meant it was equipped as a support unit, not a missle launcher. It would have had a shop container mounted on the back for the transport of small repair parts. It was part of the maintenance support for a fire unit. I've attached the field manual that provides some clarity on how Patriot units are set up. It's a little out of date as it doesn't include the MTV, but all the principles are the same. Essentially, with that container you've purchased, your truck will be set up very similarly to how it was in active service.
Your truck has an odd bit of history attached to it. It was included in a paint survey of Patriot systems in Fort Bliss TX in 2006 (Attached), passing with no defects apparently. At the time it was listed as being painted camo green, and had likely not had an overhaul or refit at that point. Soon after it would have relocated to Fort Bragg when the 108th moved there (2007). At some point it would have had a repaint in which it got its CARC tan paint. Most likely would have had a refit/overhaul as well, which would be indicated by a metal plate on the body/engine.
Hope this helps!"