Mack Toon , I probably went a little overboard on mine. If I was strictly fishing for bass after dark I would have taken your approach on the lights. I've always heard bass don't care for the lights...and they don't hang out in view when they are on. But they do come in like torpedos and pick off the bluegill and other baitfish. 

It's not too hard or complicated. Plan everything out before you start drilling any holes in your Kayak. Know where you're going to keep your batteries (and how many). I run the green and blue lights on one battery, and navigation lights on another. Below is  a list of stuff needed.

Light strips that are rated for water. I picked mine up at Academy Sports and Outdoors in the kayak section. https://www.academy.com/search?searchTerm=led%20light%20strips

• Deer feeder batteries (12v) they run about $20 a piece

• wiring and switches (usually can get at Walmart and or autopart stores

• electrical connectors. You'll need a variety for splicing and connecting to your battery and switches.

• Drill and a set of small drill bits. (You'll want to use the smallest you can get away with and wire still go through).

• Silicone to cover any holes you have to drill that are subject to water. Kinda optional

• Time. I can't emphasize that you plan before you start. Build time is going to depend on it.