Hey, if you already took the dash apart and swapped those bulbs a couple times, there’s not too much in that multi switch that should scare you. A few thoughts
I never took it out of the 96, but I’m not only took the one out on my 87, I took it apart and easily fixed it. There were a couple of contacts where it would flip from high beams to low beams. One of them was corroded up, got hot, and the solder leak out a little bit. That created a lump so when you flipped from high to low, it was in the way of the contact making contact. Coincidentally, I picked it off with a pic, cleaned it off with a tiny brass brush, and the rest is history. Now I have an extra.
The next thing I’ll say is in the category of do as I say and not as I do. My work table is so multicolored and pock marked from 30 years of who knows what, but if anything lands on top of it, it’s a giant game of where’s Waldo. I also have a bad habit of working on 6 inches on the corner of the table and then dropping something on the floor, which makes the table look like a sheet of glass. But here’s a couple tricks.
Work in a big flat area. If you’re working with something with fine screws or springs or such, spread out a sheet or a towel. Don’t lay it perfectly flat, leave a few wrinkles. If you drop something, it will be right there and you can find it.
If you’re afraid spring will pop when you’re unscrewing something or are you going to pry it apart, same concept, drape a piece of sheet or towel over your hands for the moment you actually pull it apart. If something pops, it’ll be right there.
if you do drop something on the floor like a screw or a spring, looking down on the floor is like looking into the bottom of the ocean. If you take a flashlight, and you lay it on the floor, so the beam goes out in the line from the flashlight, and you slowly rotate it across the area where you think your part is, your eyes will focus within the beam and many times the lost part will jump out at you when you cross it with the beam.
I doubt there’s much in that multi switch that will stump you, and the sooner you learn to dig in things like that, the sooner you learn you don’t have to dig into your pocket the same way!
And if you bust it? It was busted anyway, but you’ll learn something. Just don’t bust things that aren’t easy to replace if you need the truck for transportation.
As always, my two cents, hope it helps.
Afterthought, but I take everything apart. Even things that are riveted together. There are so many times I’ve drilled out the rivets, and found some silly little thing easy to fix, or just clean stuff, and then use small nuts and bolts or rivet to put it back together.
Which gets into my habit of saving absolutely everything, or at least the nuts and bolts and screws from whatever. I even have a little can of the teeny tiny stuff. Of course I’ve been collecting for a little bit longer…
Trust yourself, take your time, my two cents. Line times out of 10, if you think the guy in the workshop can do it any better, just to your wallet in the door and forget about fixing the part
Welcome Visitor! Please take a few seconds and 
