I really don't know how to proceed now
May I kindly ask you
AlpsRider to help the community further by trying to pin-point the portion of your 235/35 tires which actually rubs? Even though from your picture it looks like it's the circumference, it would help tremendously to know for sure - and whether there is any chance at all to solve the problem with more negative camber (which could only be the case if the tire rubs with the outer edge rather than central part of its tread)...
Perhaps you could apply some color substance over the fender lip, and see where exactly on the tire its traces are left after inducing the rub?
Piotr