How Did You Distribute Your Power When Wiring Your Truck

[es67chevy]

I am in the middle of rewiring my truck with an 18 circuit Painless kit. I'm trying to think through the best methodology for distributing power from the battery. Instead of overthinking it, I decided to ask the experts. Who on here has dealt with this and has some good clean examples of how you ran your power from the battery? I know I have to get power to the starter, but there's also several separate wires that also need power. I'm also wiring for an amp and its a 4 gauge wire. Did you use some sort of power distribution block? If so, have any pictures of what you used or any advice on what to avoid or what works well?

Thanks!!!