Today I didn't anything on the bimmer but ordered Turner Motorsport rear shock tower reinforcement plates and I'm getting my rear shock tower fix at garage L'Atelier this saturday!
Update: received these this morning. Paid more for shipping than the part itself....
shipping? yeah, big time. Next time I'll ask them to ship via USPS instead and wait longer. Cost me 39$ in shipping and import fees. I paid 30$ for the part...