At Oswestry i mounted the shocks on the back of the wishbone, with wishbones in right place, to do this, dill a new hole on back of wishbone move shocktower to the rear of bulkhead, get a 30mm screw to attach shock so this clears the camber link, car felt alot better like this!
To run the wishbones around, dill a new hole for the roll bar, turn the wishbones around, leave shocktower on the back of bulkhead, job done, not sure why you need to play around with blocks or cut bumpers like Chris has done, mines fine, car was much better like this than with wishbones the same way, could throw it a lot harder into the corner and get on power much earlyer too! I am even running mine with the quick klips at the back of wishbone to make it even shorter!
Pics below, i have made my own carbon bracket to straighten up the cambe links but thats it!