Astra G Wheel House

Good evening,
i got an headache on the Astra wheel House,
What the offset range that can be put together in 17 inches 7.5 width
Without rubbing of course, neither the wing nor the inner lining..

In the future I think to lower her by 35 mm - Will its add and limit to the rubbing problem ?

I am currently wearing 16 inches 7 wide and 40 offset.. With the original suspensions
And it does not concern anything and is not limited in range of movement..
But do'nt know which 17-inch offset is right for her..