the little rubber lined metal channel that the window sits in on my drivers door is all rusted and yesterday broke free from the window..
Rolled the window down and the window did not come down, weird! open the door to make the Timmies order

leaving the parking lot, windows go *plunk* right down.. im like wth.
get home to discover after taking the door card off that the little channel is rusted away but there is still some of it there.. What do i do? just help the window down every time so it stays in its track? or how hard would it be to source another one?
Looks like a trip to the boneyard. I think it best to buy the glass with the metal tray- I doubt there is a way to insert the glass into the tray the way they did it at the factory and I doubt that you can find just the tray anyway. I had that happen on my MBs. On one what I did (since I had both parts after I smashed one window and another rotted like yours) was just bed the glass in the tray with some old silicone window caulk (a color I didn't need anymore from a house I had sold). That has been working OK, but, as I said, better to just buy it all.
door from the 84 is a valid idea, but it is black and blue.. i do not wish to make this car any uglier
I didn't know these were in the unobtanium catagory yet. I have 2 new ones I may just hold onto now:D
What I did on an old 81 I had was just weld a new peice on and JB Quick welded the glass into it. I made the channel the right width tack welded it then laid a couple beads on it. Filled the channel with JB Quick weld and rolled the window up good and tight for about 30 minutes. Still is holding as of a couple months ago. I sold it and still see it occasionally. This was 7 years ago.
OH, before JB I fit everything and made sure it would work. Had to bend the track a little, but all was good.
I've had this happen,..
so I don't throw glass when parting out a car, without pulling the channel and rubber piece stuck to the bottom of the glass.
They come off and transfer to another window pretty easily.
Or maybe you could have someone cobble/weld it back together.