Get some wheels from OD Iron...you will be glad you did. They work perfectly for this application...and you don't even need to flip the hubs for (near) perfect front-to-back alignment (within 1/4", which you cannot see over the length of the truck). No muss, no fuss, and they bolt right on.
It's either that, you're own custom rims ($$$) or finding a set of A3 rims (used to be super-scarce, but getting easier lately, but still $$$).
I know what you're trying for...I already did all the looking, this is the best way. OD Iron wheels with 14.50s all around. Oh..and don't forget you need a spare (or at least an 11.00R20 on a stock wheel, as the height is nearly the same as the 14.50R20).