Welcome to The Ranger Station!
Nobody mentioned tunes....You'll want a modern head unit with Bluetooth/Aux input, maybe an amp with better speakers!
I suggest you get a service manual and take this opportunity to catch up on all of its maintenance items. Simple things like a new serpentine belt, put new bearings in the two pulleys (or just buy new pullys). Flush the coolant and refill, check all the hoses and replace the thermostat with a quality 193 degree one. Flush out and replace the brake fluid when you replace the pads (and maybe rotors). Spark plugs can tell you how well the engine has been running, at least clean and gap those, if not replace with new double platinums (Autolite or Motorcraft) along with plug wires.
Then get into the mechanicals, check out the tie rods, ball joints for wear, replace with the kind you can GREASE occasionally. Flush the power steering fluid, replace it with synthetic ATF for quieter pump operation. I just suck out what's in the reservoir, refill with synthetic ATF, drive it a few days and repeat, repeat until you used up a quart.
Once you get all of those essentials up to snuff, think about the realistic usage of your truck. Big tires are all that off road, but effect your mpg driving around town. They also throw off your speedometer.
Make sure your parking brake/cables are in good working order, you NEED that to work. One trick I use fairly often is to gently apply the parking brake part-way when the rear wheels are spinning. Once it grabs and you regain traction, release the parking brake. That trick can get you out of a hole!
Take a look at your rear differential tag (or get the code off your door panel) and report back what your gear ratio is. If you have 4L10, that's the best for off road, stock. It'll work with taller tires better than 3.73s. If it's 4.10 without the L (for limited slip) I can predict you will be wearing out one rear tire and using the parking brake trick off road.
I suggest your first mod be adding LED Off Road lights.