Hi mate, I should have explained further.
I will be running wider wishbones so as you say the ball joint to strut centre will change; I also have extended steering arms to fit but may keep the original ARB position when extending the wishbone, either welding up the originals or getting a full...
I have just been on to Matt H for a whiteline kit for the castor so hopefully that will help.
It would be 14*7 initially with 195 tyres..... Im thinking of switching to 14*6 and a 185 tyre to widen my options
I done have power steering at the moment but i have assembled enough kit to re install a P/S which is the plan.
It's bad enough as it is with the diff and manual rack!
I may have to look then at the offset of the wheels to reduce this