Sorry to chime in so late. Here is a link to a member from mbfanatics.org with a widebody on his w126 coupe. http://www.mbfanatics.org/forum/index.php?s=&showtopic=13&view=findpost&p=52
I've seen the car in person, demands attention. The owner, Steve, said he had a lot of trouble finding the kit, finally sourced it out in Japan. I'm sure if you pm'd him, he would answer any questions. It will be a few months before I run into him in person otherwise I would make him aware myself.