Newb lighting question

Hey everyone

im trying to find a different and better solution for the lighting in the bed of my truck and the go fast. my current set up is led lighting around the edge of the go fast to illuminate the bed which is powered by a bigger power bank that basically just get attached to the bed rail(see photo below). Secondly, in the tent i have the same light(different strip)cut and mounted across the high point. These ones are powered by a smaller anker power station. Both connected via USB. My truck also does not have the outlet in the bed, but i think it is wired for that tbh. My initial thought was to maybe add a smaller second battery under the hood thats connected to the alternator and then hooked to some sort of switch or switch panel in the bed and it gets rid of the extra cords and batteries.

I also was looking at some of the more inexpensive solar options to mount on top of the go fast and then have that go into a switch panel if possible? Or is my set up fine for my use case, i dont plan on powering much more than these lights back there right now but would like add some stuff that needs power in the future. Would love to hear some thoughts or even ideas on this.

Thanks