If it's not a DD, then you can get away with bigger tires (30/31"), and can always get your low-range back with t-case gears. If you have the 3-speed auto (and the 4.xxx diff gears), you can get the 5.125 diff gears from a 5 or 4 speed. For on-road I don't recommend going bigger than 29" tires unless you're okay with taking significant MPG & power hits.
I didn't hear you say you like to play in mud, so I'd go with a good All Terrain tire. Something that rips off BFG's design (virtually every tire manufacturer does, check wal-mart, pep-boys etc until you find a set on sale. And, if you're going on beaches - GET LOCKERS. You'll need them.
I support this. During my buildup, I used a couple of different tires, sizes and brands, I would look at the Walmart Lorado AT in a 29-31, I had good luck with them, a bit stiff compound, but worked well when aired down and squished on a few rocks, another outstanding AT I have ran for the price is the Nitto Terra Grappler, I found them on ebay, new and shipped to my door for much less than the BFG's, nothing against BFG's but they are a bit on the costly side. If you run over 30's on your rig, you should really look for the 5.12's, which are a dime a dozen in the SoCal junk yards, just look for the older manual tranny Sidekicks or Trackers, while your installing them, you may want to buy your locker(s) too. If you find an newer Sidekick or Tracker, commonly 96's, and better, you want to steel the 26 spline front inner axle shafts and sidegears on both sides and get yourself the 26 spline front locker instead of the 22 spline locker, that will save you the heartache of busting your inners if you go up in tire size. While on this subject, if you ever end up busting an outer on your front, it may be worth your wild to buy a replacement and warranty from autozone, then if you break it again, you can take it in and get a new one. Good luck and have fun.
