67 Barracuda Factory Air - Worth Fixing Up?

Our 67 is an AC car, and while we have all the underhood ac components, there is no chance I would invest any $$ in it.
The push button switch is amazingly expensive and not repopped. These are plastic and very brittle. They MAY be able to be repaired.
For what u were quoted for rechroming diffusers, I would invest that in an aftermarket ac kit. More reliable, effective and use the current refrigerant.
Sorry I didn't answer many questions, Just posted opinions. The ac diffuser is a very nice looking piece and we left ours intact as it looks awesome.
Good luck.