An inch taller tire gives you half an inch more of height. If your nose end sits a little low, as many trucks from the factory do, then a front level will bring the front up about 2 inches. Two and a half extra inches up front is always a better option.
If you take a look at something like the Chevy Silverado Custom Trail Boss, it may not be the end all/ be all, but it's more than capable on the trail. All it really has is a 2 inch lift, 33 inch all terrain tires (duratracs) on 18 inch rims and mild offroad shocks found on the z71.
So I think what
@Billiebob said there is on par with what I'm saying, and should get you the most bang for your buck. Since you already have 32 inch tires, though not 33, they are not bad. It's possible that if you invest just a couple hundred bucks to maybe $500 into the front level/ 2 inch lift, that might get you more bang for much less bucks, and put you in a better position. Test it out, see how it behaves then.
My tires are a very little bit smaller than yours, but are only highway tires. However, I have already added a 2 inch front level kit and removed that low hanging front air dam off my 14 GMC Sierra. So right now I'm pretty happy with the lift. I just would like 33 inch all terrain tires. That might give me an additional 3/4 of an inch more lift, while also adding much better off road traction. But I did it like Johnny Cash - One Piece At A Time