I drove my 05 Chevy Avalanche from CA to the east coast and back multiple times and it had over 200k miles. The only trouble I had during my travels were power steering went out in OKC. Parked it over night, had a local Indy look at it, he flushed power steering fluid in the hydro boost and all was good the rest of the way. Another time, the front wheel bearings started making noise in Lafayette LA, local Indy shop replaced both fronts for $700. And that’s about it. Looks like you are set with all your prepping