I placed my valves and heating elements in the HLT/Boil kettle to make sure everything would fit. I am in the process of trying to complete the control system, but I am running into a lot of problems. China does not really understand GFCI or why you would want to waterproof an electrical box. A lot of simple things that I thought I would just buy here I am now considering shipping from the U.S.
Safety is a very real concern. Water and electricity do not mix, and on top of that the safety of some of the availble components here is doubtful anyway.
I am having second thoughts about my design and I plan on getting some input from the guys over at The Electric Brewery.