I honestly did not read your list - and this is why - no matter what you write here and now, the more you read, research , debate, clip, and doodle - the more that will change.
I don't say this to discourage you, I say this to make you think though. Jeeps are neverending projects, even once you think you are done, you will find something new to do to it, maybe something needs to be rewired, or you can afford a new mod you couldn't before and you upgrade something. Jeep is known for meaning Just Empty Every Pocket for this reason.
After owning three Jeeps, I have learned a few things form each one. The biggest piece of advice, which you'll probably hear over and over, is to figure out what you want to do, and then what you need to do it.
Now that I said that - I read your list -
1. Buy the leather seats - trade with someone that has cloth and a little cash afterwards. The seats are easy to remove in warm weather with the tops off anyhow. I'd trade you mine if you were close and do the work to swap them.
2. 7000+ range is weak, if you are really stuck you don't want weak. Most recommend 1 1/2 times the weight of your rig for the winch, but if you get in sticky mud you don't want to test that too much. Go for a 10k at the minimum. Having a winch cover is nice too, and keep it greased.
3. and 4. - I run 35's with no lift other than the small gain I got from the Rubicon 10A springs. Your set up should - I think - include those springs and be a bit higher stock. If you went with flat fenders and a smaller 35" tire you could go without a lift. I prefer LCG myself, that's how I designed my Jeep. If you really want a lift, I'd look at the 2.5" kits though.
4. Love the Duratracs, lots of people here do. They run a bit small - 33.75" for 315/75/16 (listed as 35's), and they are lightweight, gas savers for a big tire. The reason I say this isn't to sell them, it just is what they are. Running an easy rolling, light tire is less hard on every other component than running a massive, heavy tire. No matter what you choose, take that into consideration.
My suggestion, hole yourself up for a few weeks, plenty of pizza, beef jerky, and beer, Jeep porn like Quadratec for use as reference guides, and start reading this forum ahwile. I suggest the photo threads. You get a good idea of how things look and many people will list what they did so you have reference to that too.
Start with basics - look at swapping the bolts out - https://www.wranglerforum.com/f274/th...ts-128154.html