New wheels on older suburban.

[71'burban]

Recently picked up a 2wd 71 burban with 5x5 axels. I also recently picked up some trail blazer ss 20's. Was wondering if anyone has put new style wheels like these or ones from new silverado on there rig. Is there an offset issue with the newer wheels or tire rub issue? I found someone who will make the adapters but they are expensive wanted to see if they would fit before I tried that route.