I like the idea of making the cams...this is probably what I'm going to try. My biggest concern though, is not how to bring the bottom of the wheel in, but if by doing that will there be any affect on the axle shaft. Is there enough "play" in the axle shaft for the bottom of the wheel to come in at all? Again... I am more concerned with any "side effects" of bring the camber in, particularly axle clearance.
Thanks to EVERYONE so far for their great ideas!!!