Sure thing. Here are the seat covers:
https://www.carid.com/coverking/cordura-ballistic-custom-seat-covers.html
I have really enjoyed them. They look good, still feel comfortable, and can take a lot of abuse to protect the upholstery
The powerhouse has been great to keep things charged over a long weekend. I have never tried to charge it via the car. I don't think it is possible via the cigarette lighter, but I assume it might via the 110 volt plug in mine. The new goal zero lithium units are probably worth a look but if I recall the might not charge via 12 volt either (which is deal breaker at those prices). Of course, an additional house battery/inverter setup might make sense, but there is honestly not a lot of space to work with under the hood for a large capacity dual battery setup. I think the Renogy Lycan could but unless you found one on sale I think it is overpriced even by goal zero standards for capacity.
For the laptop holder, I have found this is very flexible and handy:
https://www.amazon.com/Xindell-Laptop-Portable-Foldable-Notebook/dp/B07515L37T
As for the rest of your proposed mods, it sounds pretty good. I contemplated getting mine lifted, but I have heard mixed results on quality and excessive wear from some folks who have done it on a patriot. Still, you mileage may vary and it could be worthwhile to improve the clearance if you really need it. I just sized up my tires to 225 Yokohama Geolanders (no rub) which I have been enjoying the last week.