Using HK Hock alloys , splitter and alloys from Custom Vanz Chippenham . Don't know why your worried about wheels rubbing as mine DONT rub on full lock with 275/35/20 , you can check my inner wheel linings honestly.
I suspect you are running ET40 wheels, if you have no rub. What springs are you running?
On our bamboo green van we have the bilsteins wound fully down, bar 10mm, with zero rub on 275/35/20, on a 8.5 x 20 with an ET40 offset.
Im out of the office today, but they are working on the new candy Kombi T32 on 265/40's so I hop to reveal all later.