Mercedes Ebert Weinheim
I also want to mention the Mercedes dealership Ebert in Weinheim. Hardly anybody can believe, that an official MB "stealership" (as they are often called) would do such a project AND be fair.
Yes, it is expensive, but I get real value for money. They were all helpful without limits and always there for me. Just one example of many: when the cars were being picked up for the transport to Finland, I was on a business trip. 10 (!) people helped pushing the cars onto the trailer and I got no invoice!
Although I will forget some, but I try to mention a couple. There's Felix Mueller, service manager … whatever problem was there, he helped. Guennar helped me with revising the gearbox and gave a lot of advice during the conversion. Philip and Berre from their bodyworks section helped a lot in welding and producing special parts. Uwe and Marco (father and son) from the spare parts department got me all the parts I needed and did a lot of research for me. Sergej, head of the whole workshop, who always found a slot for my project within all their other work. Holger and Thilo, the 2IC's in the workshop, provided valuable know-how and helped whenever I asked. Last but not least, even the managing director supported this project.
Sorry to all I forgot, the apprentices who helped and many more.
Here's a link to their website (only German).