Well, I tested two of my five wipers motors and they work! I just have to install new plugs and wires. After that, some blasting, paint and finding close to correct wipers and arms. Originals are impossible to find.
What durometer? 90? My buddy tried a plastic product that was too hard and he would slide. I’ll try 90 durometer and will adhere to the track. A company is sending me a sample cold vulcanizer to try.
Tell Mercedes you want the lengths per their new blueprints. The two lengths they told me were incorrect. The Studebaker archives charge $35 to look for prints then charge $3-$5 per page plus shipping. Contrary to most stuff on the internet, weasel prints aren’t free and can get costly pretty darn fast. PM me.
Keep on top of the delivery from Poland and post pictures when it arrives. I had a buddy of mine (a professional welder - the guy can weld tin foil) reproduce a bomb box for me and it was pretty darn good. The welds on the sheet steel were very pretty like a stack of dimes.