So far I not going to be building anything right away since I may start on other things first and also depending on if I decide to start up another tank again. I made up a quick diagram of what I think I would want to have for my setup. Of course depending on when different hardware becomes available this might change a bit. I have some things I want in the basement so I have to have a I2C bus extender unless some things can be done via USB maybe in the future.