2021 V8 Hemi Trailhawk Mods

I’m in the process of finding this V8, looking for under 60k miles. I’ve researched common problems so I know about most of them but here’s my question.

What can I do to make this thing last forever? I know there’s tons of mods to make them cooler and faster, but I’m only focused on reliability and there’s not much online about it.

I know that my oil and how often I change it makes a huge difference, but if I wanna put a bit extra money into bulletproofing this thing I’m all ears

I’m curious about replacing parts in the drivetrain. I’ve considered doing an upgraded lifter and cam, but I’m keeping the power output the same. Planning on putting an upgraded oil cooler and trans cooler, but lmk what yall think!