Hi,
I have the old dash pad from my w123 (looks like it was originally from a 240D - has the idle adjustment location), it's in decent shape but has a few cracks, I'll get pictures later if anyone's interested. It's got hairline cracks around the speaker grilles, one smallish crack behind the binnacle at the defroster vent, and some messed up areas above the sunroof control area.

Here's the kicker-- it's a black dash pad, but it's been spray painted (poorly) to a dark blue that roughly matches the "blue" mbtex interior. Does not have a good glovebox door, I can throw in some vents, glovebox door liner, glovebox liner, speaker grills, and probably a few other spare parts.
At one point I was going to repair this dash and strip the spray paint in order to dye it. I found that goo-gone would remove the paint without any apparent damage to the vinyl.

Free - or would love to trade for some other w123 interior trim pieces if possible, would be happy to meet you somewhere near KC on a weekend. I really hate to throw it away/scrap it for the aluminum, and my storage space is limited. It's certainly better than some other dashes I've seen, and with a bit of TLC could look decent.