Why revive stinger production instead of adopting something more modern, like starstreak or any of the other NATO manpads? Surely technology has come a long way since the 80s. License the technology and build it at home.
The introduction date of US weapons has little bearing on their sophistication due to the Ship of Theseus upgrades, and most were a decade or two ahead of their counterparts when released anyway. Most can be upgraded or downgraded to a specific version/standard on demand. Downgrades are commonly done for export of US military inventory.
I believe that is the point, notiwthstanding that all jobs programs are not the same. Time for some baseball (my favorite analogy).
If you want to preserve your ability to "play ball" "against the day": it's not enough to keep a stock of balls, gloves and bats. You have to be able to make gloves, balls and bats. You need suitable "dual use" fields, or a plan (and force) for rapidly converting fields for baseball use. But that's just the infrastructure.
You need to preserve your ability to play ball. You can't just hire some people and put them on retainer. (And creating NFTs of baseball players doesn't work either.) The players need to practice as a team in realistic conditions; some of them could get hurt during practice (and equipment could get destroyed). You can't just hire H1Bs for this (although a nod to the French Foreign Legion, at least historically), you need people who are actually good at it and passionate for the game: you're going to have to have continuing tryouts and a farm system for identifying potential top players, and you'll need to cycle talent through over time because people don't stay at the top of their game forever. Finally, that passion is required of players if you expect them to stay at the top of their game over time in the face of a world which doesn't care.