Just trying to think through some issues that came up and tips for anyone that might want to try the same route as I did. First thing that comes to mind is if you are going to route cables internally, buy this $4 magnet tool. I learned a ton of things from Park Tools youtube videos and they have a similar tool but way overpriced. This tool saved me loads of time and I was able to route all cables with ease (once I figured out how to use it . Note it won't work with a steel frame.