I don't know if there are an interest for someone.
but for completed my rear axle, I made a search in the teilekatalog for all the parts numbers rear axle. I hope it's as fair as possible.
I also made a pdf with bmw retailer Availability and prices (France)
http://www.m3e30.fr/medias/files/tarif-motorsport-train-arriere-dtm-pdf.pdf
