Nice looking truck. They all need some work

Unless you do it all at once, they will continue needing work for a while. By that time you get done you get to start all over again with some of the first things you maintained. That is the only benefit of a new vehicle, you get out of that cycle for a few years if you are lucky.
My daughter lives in Buffalo NY, has a 4 year old Jeep Renegade. The relay for the throttle body and related wiring in the under hood fuse box corroded, shorted out and smoked the electronics in the throttle body. The service manager at the Jeep dealer told her "this is an old car, you have to expect things like this" Four years old. You know if that relay corroded there are others following on the same path. Not so lucky...........