Wheel and tire combo

[Tilt]

I'm planning on running Vision Legend 5 wheels in gun metal gray, 18x8.5 5-127/5-5 offset, 10mm center with a 255/45/18 in front and a 20x9.5, 5-114/5-4.5 offset, 38mm center with a 295/45/20 in the rear. The truck is an 86 stepside and will have spindles and cut coils and a flip kit and hangers for a 4/6-5/7 drop. I figure I''l have to do a little grinding on the LCA to keep from rubbing. I want to keep a little rake on the truck but not whole lot. Anybody see a problem with this combination? Does anyone have this same setup on a stepside? If so, I would appreciate some photos.