Help!!! wheel, tire and suspension

[lifted k10]

Hey guys, I restomodding my 86 c10 stepper and just about to order my wheel and tire package. The truck right now is static dropped with 2 1/2 spindles and 1 coil cut and the rear is flipped. The truck will be getting bagged within the next year or so and will only be using a c notch so I can retain my bed , not looking lay out on frame. My ? is should I run a 20x8.5 front with a 22X10 rear or should I just run 4 20" wheels or 22" Wheels? My next ? is what offset should I run since the wheel builder will build per my spec's? Third and final ? what size tires should I run ( I need alittle meat so no rubber bands) 30" overall height. Thanks