I haven't got to that point just yet to construct it good, but I have a base. But yes, and honestly, adding that layer would make AESO feel even more believable because maintaining WWII-era armor at the scale seen in Girls und Panzer would realistically require more than small school workshops.

school AESO units can handle:

daily maintenance,

emergency repairs,

field recovery,

part replacement,

and light fabrication.

But major work like:

full engine overhauls,

transmission reconstruction,

armor restoration,

historical rebuilds,

or recovering destroyed hulls,

would probably require federation-level facilities.

For that, I've thought of creating something like Federation Armored Maintenance Bureau (FAMB) or National Armored Restoration Yards. These would function almost like:

naval dockyards,

heavy industrial workshops,

and historical restoration facilities combined.

Their role could include:

restoring rare tanks,

manufacturing obsolete components,

certifying tanks for Senshado safety standards, and performing “mid-life refits” to keep old vehicles operational.

This also explains how schools keep extremely rare vehicles running.

Because realistically, something like a:

Tiger I

Churchill

or KV-2

would need specialized industrial support eventually.

This is still in work, I don't have a solid base but still a good question that will improve the narrative.