The 1M came with the 19 inch wheels from the E90 M3 competition package...so maybe they will clear with out spacers?
Here it states only the 18" wheels require 12mm spacers.
http://alekshop.com/products/ap_raci..._m3_1m_e9x_e82
Oh and it looks like your only swapping the fronts? so E-brake is not an issue.
That's a pretty sweet set up.