My setup might not be worth much against the above setup, but it might be worth a try. Since the limit is 1153kg, fully lighten it, then add the 102kg needed to meet the regulation, but add it to the back.
Personally I have 10 downforce or less
My L.S.D setings are:60,60,5
Suspension;
Ride height: -20 front and back
Spring rate: 11.0 front and 14.0 back
Dampers are all at 6
Anti Roll Bars are at 4
Front camber is 1.5, none on the rear
Front toe is -0.50 and rear is -1.00
The toe angle has made the car more responsive at the expense of making it a bit unstable at high speeds, so it depends what your style is. It's unstable in that it's a bit difficult to keep in a straight line.
