The production tooling, or jigs to make parts, are the most or second-most expensive parts of an airplane's development.

Typically, the US Government mandates that all the jigs be destroyed when the program is completed. I'm not sure why.

Boeing destroyed all of the 757 tooling to ensure sales of the 737NG.

Fairchild no longer exists, and I think even the factory in Farmingdale is gone. Could the tooling be rebuilt? Yes. Would the airplanes be cheap? No. Would it take almost as much time as developing a new airplane? Probably half.

Does anyone want this done? Yes: US troops who have been suported or saved by the A-10, the A-10 pilots who were there for them, and military and civilian bystanders who understand its importance.

But the pursestrings are controlled by Generals who see CAS as "not my problem," and are more worried about a hypothetical war with China.