These are complete, pre-wired kits, all you need to do is bolt them on, plug them in and go.
There are only 5 available at this point, but I will keep making them if people buy them.
You can buy them here: https://www.etsy.com/listing/234609790/ ... switch-kit



If you are curious, you can see the instructions here (pdf): http://tinyurl.com/s3limits