I'll pitch in what I have even though it's mostly an echo.
Lifts for the 1/2 tons are completely for dick measuring. I have had 2 900 series trucks since they were purchased in '96 (180k and 140k at the moment).
The truck with 180k is my DD. I run 34" LTBs on the stock suspension (have not replaced a thing on it yet). It rides slightly lower than stock (worn out springs). Bumpstop to bumpstop (I flex this truck out pretty hard wheeling several days a week) I have such minimal rubbing I just ignore it. To completely stop it, I would have to trim about 1/2" off the plastic behind the front bumper (not really visible anyways, I'm just too lazy). The rear wells grabbed very slightly under full compression, but my fender lips were not completely straight, and I bent them back to where they're supposed to be with a crescent wrench and it hasn't rubbed since.
Unless you want to run really wide tires (pointless in my opinion, wider than a 10-10.5" is just going to destroy your frontend on a 1/2 ton), you can run a 33-35 (depending on brand and rim width) with no lift and little to no body modification. That said, for a truck that is actually wheeled even mildly, a 33-35" is what I would call the limit for the 1/2 frontend anyways.
You can only run a 33-35 without wearing out parts, and they will fit without a lift, so why throw away the money? Put the 1300 into a semi-float rear and a locker or buy a winch. It will be a much more practical wheeler for that.
I would also recommend upgrading the servos in the tranny if you're going to run bigger tires, especially if it will be in the mud (it will frequently be shifting hard into 2nd gear in the middle of a patch of mud). It's about $70 and a 30 min. job. It's immensely easier than replacing balljoints or bearings, which you'll be doing anyways.