1st Congrats. Our 03 Majestic has had very minor problems.
Before you buy...
When we got ours, they said I couldn't borrow/use their ladder to look at the roof because of their liability reasons. On a test drive I found a truck loading dock and backed into it, height of loading dock gave me enough of a boost up to get on roof to inspect.
After buying RV for ride home...
-First chance get some extra keys made.
-Pick up 3 gallon water jug. Don't let jug touch anything and pour into toilet along with couple soap pods. The 10 hour drive with soap pods bouncing around will help you later.
- Refill jug to use as drinking water on way home till you sanitize entire water system yourself.
Extra stuff I carry...
Spare COP (cool over plug) and spare injector, along with spare fuel filter and fuel pressure gauge. And those little tools to remove fuel filter. My tools are in a case like this (and very litttle noise from bouncing around)
https://www.amazon.com/Craftsman-Mechanics-36220-Newest-Version/dp/B00F1WPCEG (get the size that will fit where you want it store it)
ON your list...way to much stuff IMO. But everybody does it differently. What ever you are comfortable with, is my answer. Paper towels, to be use as rags. Pick up couple cheap led lights. Impact wrench, really? How would a pyro gauge help you broken down along side the road? I do carry a temp IR gun 20 bucks at Harbor frieght is my pyro gauge. Doubles for checking other temps also (Dutch oven cooking, finding the darn cat at night, etc)
AC and DC phone chargers/batteries...Careful not to over load. Years ago CA had small amp fuses because renters plug in about everything you can think of and common to pull to much elec.
Generator...when pre-tripping, open up compartment then start and look for any gas leaks first time firing it up.
After you get home...download service manuals on every item you have and put on desk top. Should also give you a start on maint. check list/schedule.
The odds of anything going wrong are very slim IMO.
I have 7 business days to add vehicles on my insurance policy, don't know about others. Might be worth checkiing into.
Don't know how much their warranty is anymore but their Extended warranty I would not buy. Their price is almost 1/2 of what re-powering would be. I (we) bought one because wife really wanted it. Reading bewteen the lines, doesn't cover much, (like most of them) Of course nothing went wrong with ours. So maybe your statement "I'm of the mind that if I bring it, I won't need it." proved true as in we didn't need it.
Lots of trips and lots of fun.
