I would just start with tires. Until you take it out and use it for exactly what you want to do, it may be hard to know exactly what you want to change
1. Use the vehicle
2. Take not of issues or inconveniences
3. Modify as needed
If you know you're gonna go camping, you'll probably want a nice set of All-Terrain (not all season) tires. You can make your way up almost any forest service road on highway tires, but in emergency weather or certain situations you'll want some better tread. Go for a snow rated all-terrain.
If, from there, you notice deficiencies in the suspension, address them. But, as you add more modifications you will run into areas where you may have to compromise or do additional supporting mods/maintenance. The less you add, the easier the vehicle is to drive and maintain normally.
You can start with the stock wheels and a tire that measures out between 29" (stock) and about 30.5" tall and you shouldn't have any issues with rubbing. I use tiresize.com to compare tire sizes.
If you're towing and need help with that weight, you might get load helper/air helper bags or go with a stiffer rear spring from old man emu, ironman4x4, etc. If you go with new springs, or with the land rover springs , you may need to lift the front with a spring to get closer to level. Here's some front coil options
Manual hubs are nice for people running lift or heavier tires, and can easily be installed yourself
I do not recommend lift spacers on the front or the rear suspension. It's an inferior option.
Skip the brush gaurds. They're a damage multiplier imo and they usually eat into your approach and departure angles.
Steel wheels are not a bad option at all. If you want to go with really tall tires (taller than 31"), look for a wheel with 3.75 backspacing. This helps push the tire away from rubbing up against the lower strut/spring perch. Tall tires at that backspacing will require trimming in almost every case.
Again, I would start with just the tires. You'd be very surprised how far you can get on just a stock vehicle and some forest service roads