Just give the A-10 and the Air Force CAS role to the Army. The USMC would be glad for a few also.
Or buy the Scaled/Rutan “Ares”:
https://www.youtube.com/watch?v=zG9LlHcX8lg
Turbofan Killer Bee: Rutan ARES “Mudfighter” for U.S. Army Close Air Support
That’s quite a machine!
In the 90s, the Marine Corps tried its best to adopt the A10, but because it is incapable of taking off and landing on an aircraft carrier (non-rigid air frame) they had to turn it down. They even went so far as to reinforce the frame, but then it greatly reduced it ability to carry fireworks.