Yes I am. I am also replacing the windshield and gasket (MB gasket only) because the gasket is original and cracked. I pulled the cowl since the chrome trim had to come off and am replacing the really nasty air filter. Probably original. Also restoring all of the dash components, gauges etc.... The dash chrome is also being renewed. A real domino effect but have been waiting a while to do this. The rest of the interior is fair shape and original. I will do that in a few years. All part of the Master plan!
Even though my car is a 280SE, I am swapping for a 220-250SE wood binnacle while I am doing the burled walnut. Very excited about that. I am redoing the leather on the dash as well which includes the original binnacle. Easy to swap back to original if needed. For those considering such a swap, you must also have the upper dash pads as they are about a 1/2" longer than the leather covered binnacle dash pads. Reason being is the upper pads butt up against the binnacle with the leather. With the wood veneered binnacle, the pads actually fit in a recess in the binnacle. So yes, they are different.
With someone's assistance (read High tech and able), I could post the procedure how to disassemble the W111 dash. I have the article from "Mercedes Collector" and am willing to scan and send to someone who can post to the tech section. And while it is not exact for every year, it is great and uncovers the hidden fasteners that you would not know were there.
I know there has been some talk about adding a small area for W11X only tech stuff. I think this would be a good example because it is similar, but yet different from the W113 cars.