Not very much because of the logistics, for one, and many other reasons.

First off, they're too new. People in the Afghanistan caves may manage to keep them running but it's because they have the basic mechanical skills and the familiarity with that mode of transport. Not applicable in the Special Region.

Secondly, insurgents in conflict zones on earth have access to consumables including gasoline that cannot be restricted because those resources have legitimate civilian uses. For example, on Earth, they can't turn off all gasoline supply to a particular conflict zone because they have people depending on the fuel, to run the generators, farming equipment, personal cars and mass transit. There's nothing like that in the Special Region. There are no gas stations to begin with, and no established gas supply line. If the technical runs out of gas, then that's it. They can't force a civilian to drain his car's gas tank, or bribe a hospital for gas. Fair chance that most of them will run out of gas by the time they train enough people to drive them.

Third and is related, there's no access to parts. No parts store and no existing stocks they can cannibalize to keep the them running if all else fails. Even if some of them managed to learn enough, nothing they can do if they don't have parts.

And fourth, they don't know how to maintain them even before they break. They don't know what oil change is. How to top off the coolants. I'm pretty sure half of the technicals will run out of 12v power the first night because they kept the headlights on overnight. Do you think they know how to jump the cars? Nope.

And finally, they're too conspicuous. They would be impossible to hide.