20" wheels pics

[AspecialZ]

I found a company online with some pretty descent rim prices, but they can only sell me a set of 20x8.5 with 5" backspace instead of 18's and 20's in rear like I thought I might go. The issues I guess which has been brought up by many people on this board is that I have a stepside (76) I'm sure you've all seen the pics...and in case you haven't I just like showing it, best body lines gm ever had i think. Anywho, what are you custom wheel guys running, or do you think I should go a different way with this truck. I am looking for serious input on this truck, spring is coming soon, thanks!!