ahh I see. That sucks!
I was asking because years ago in the early 80's I drilled holes in mine to mount my monster tach. Back then I didn't give it a second thought....H-bodies were EVERYWHERE! and they literally built millions of them! Who knew that I would still own the car almost 30 years later??! and i would be considering reverting back to a more stock appearance of the interior?!! AND that there would be virtually no parts - anywhere?! (I also wish I hadn't pitched the stock front seats....but thats another topic
).
Anyway good luck with your search, I am confident one will turn up sometime , somewhere.
The good news is a dash pad from ANY year Vega should work (I think....
).