I did this in my six. Five the smoke wasn’t nearly as bad as that but I’ve driven at about four hours since doing the treatment and it’s running pretty rough still and I had about 2300 RPMs under load it’s sputtering and bucking
Try Ebay- I just bought a pair for $22 shipped. If any of them are like the vent at 2:40 you could try fixing it once you have it out of the dash by carefully popping the vane out, then drilling a 1/16" hole a little ways into the end where the pin broke off and re-pinning it- I used a piece of a 1/16" wire brad to make the new pin.
