The thing with packing is that you can go with as little or as many creature comforts as you want. The more comforts the more pack horses you need to bring.
In the early days when I didn't have as large of a trailer or as many horses, I would pack my saddle horse and walk in leading the horse. Once camp was set up, I could then ride the horse around the surrounding area.
Soon I got two horses and would ride one and pack the second one. It was great when I just wanted to get away. A pack horse can usually haul everything for two people. So with one person two horses, I quickly forgot everything I had learned about back packing, No more Freeze Dried meals, But I was able to bring real food. Potatos, carrots, onions and some canned meat and make a real stew, or real eggs.
I've slept under the stars, I slept under a blue tarp, I've slept in small dome tents and I've sleep in wall tents. You choose just much protection and comfort you want to bring. And after doing a few trips, You will learn what works and what doesnt work for you. The biggest difference is did you get wet, did you get cold, did you have a misserable nights sleep because of the rocks under your back?
Daughter setting up a dome tent
The only thing you really need are some horsemanship skills. How do you take care of your horse in the back country? Can you put up a HighLine? Will your horses hobble? will their be food and water in the back country for your horses or do you need to haul it in with you? If your horse throws a shoe, what will you do? I don't know where you ride at, But out here, There is no one to help. You loose your horse and you will be walking back to your truck, And maybe your horse will be there. They are pretty smart about knowing where the trailer is.
My advice, Just get out and do it, Make notes about what worked and what didn't, and next trip, fix what didn't work the first trip.