For sale are a set of camber plates from dinan. These will give approx 0.75 degrees of negative front camber. New they are $199 from Dinan, will sell shipped for $100 OBO. Comes with everything needed to install.
With front alignment pins removed (required to install these), these camber plates, and the M3 front control arm kit I was able to get around -2.25 neg front camber. Not as much as adjustable camber plates which i have tried as well, but this was more of a set it and forget it solution. Worked great on track while still being relatively easy on tire wear for my street tires.