I might go bigger (wider) just because I have a extra set of JK take offs that I use on my WJ so I might get some 17" rims and use the spare set of 255/75/17 and keep the stock rims and tires wrapped up in the shed. This way I can go back stock easily. I am looking at least 700~750 for replacement 7.5 x 16 tires and tubes (or tubeless) while I can get steels for 350 out of pocket + mount/balance as I already have the JK tires/wheels. Plus add a little attitude on the Pink Truck :sombrero:
A 235/85R16 or even a 255/85R16 (if it would fit) would look great on the original wheels. I think later 17's would just look out of place on a truck that original. Just my opinion.