I'm looking for an early 80s era saddle bag for a Le Tour I just repainted and built. Any ideas?

I have no idea, as anything that does not fit in a jersey pocket does not go riding with me. But I wanted to at least acknowledge your Milt Jackson reference. Swingin'.

Ah man, I thought you would be talking about Milt Jackson.

I hear "early 80's saddle bag", and I think Cannondale right away. One with a big round reflector bolted to it.

Two thoughts come to mind immediately.

For a classic saddlebag that doesn't cost quite as much as a carradice, acorn:
https://www.acornbags.com/

For a weirder, more versatile option, oyb:
https://outyourbackdoor.com/article.php?id=198

brooks.