Sounds like a sweet setup. Touchscreen would look good, just be sure to make it waterproof/put it well out of the splash/steam zone.
This is pretty old but should give the idea.
http://tinyurl.com/keop7pl
I put the BCS inside a big junction box, put some lights/switches on the front and run the probes out of the bottom.
The box is probably twice the size it needed to be! I just used stainless wire to build a little cage for the BCS inside, keeps it out of harms way along with the SSRs and wiring.
It works a charm with my HEX, really nails step mashes.
I don't use anything like the complexity I could. I operate the pump manually and manually intervene to advance the mash to the next step (i.e.; click on the browser)
I have a probe on the HEX outlet that dictates whether the HEX switches on/off to maintain set temperature.
Happy to try any questions or take more pictures. There's a few BCS users lurking around these forums too. Good luck!