If the truck is going to be more of a show truck than taking it off road do 20's, but if your planning on doing light wheeling at all go with the 18s. A little mud never hurt any 20's any ways.
I've talked myself out of chrome, and the cen-cal look. Our salt will eat the shat out of the chrome. Now its all up to wheel size and choice
good lol i saw this truck today and had to snag a pic. had to be 20x14's the tires stuck out sooo much... looked absolutely retarded