I think you might struggle with the offset at the back TBH, if the van was at the correct (i.e LOW) ride height.
They will want to stick out quite a long way on the back. Tyres rubbing outer arch possibly.
edit: they have also been modified to also fit 5 x 100, so there isn't much solid casting left on the mounting flange. I wouldn't put them on a heavy bay in case they're a bit fragile 'cos of the extra holes drilled in em. Just my opinion though.