The question still at hand, is WHY?
I'm not judging...three of my four vehicles all have wheel spacers...1" minimum....
On my '85 Ranger, I use Jeep Grizzly wheels...15x7, with almost 50mm offset....didn't workout too well, when I tried to bolt 'em up...
I bought 1.75" spacers to bring the offset back to where it should be, on my truck, and to overcome a huge interference with the hub bore...
They work great...
I also race a '79 Volvo 242 16-ValveTurbo....It sits on 17" BMW DS-2 Wheels...I had to use lug adapting spacers for this, so it's 25mm front and 32mm rear...
Even with all my hard cornering and tail sliding, I'm yet to experience anything other than normal.