Wow, what a great find, TexasTJ. Not sure how I missed this thread till now. Looks like the truck is in nice shape, no apparent rust, and with some nice mods to boot! And it's an SD with manual seats and without leaky sunroofs! I like where this is going.
Glad you have an EGT on your to-do list, especially with the auto transmission. From what I can tell comparing temps with others (my ZF vs. their R380), the engine runs hotter with the auto compared to a manual, and you can hit 1150 or 1200 deg F in a real hurry on hills. Though if you're in Texas, I suppose you don't have many hills, so maybe it's not as much of an issue for you. In Seattle, it requires a watchful eye. Curious what temps you'll see!
And I'll throw in another vote to stick with alloys. Steelies look great, especially the Wolf's (I'm biased...), but man are they heavy. My truck is similarly outfitted, plus Wolf's, and I'm down around 18mpg. I can't help but think I'd gain back some fuel mileage if I switched back to alloys.
I noticed from the pics it appears you don't have a windshield washer bottle. If not, there's a cheap one on Amazon that I'd recommend, and it's of a more reasonable size. Unless you feel the need to stick with the massive original equipment bottle.
Looking forward to more updates!