If you look in the right places, you can find them cheap. Just scour Ebay. I have a 1200 case that I bought for no real reason that I might turn into a small control panel. It would only have the PID and switches, and I'd use some cat 5 to connect that to the SSR's, in another box, maybe under the top of the brewstand. I'd still have a 120v power cable for the PID, and an RTD wire. They sell premade panels that mount inside the case with a few set screws. That way I could make all the cuts in the panel, and not ruin a $50 case, just a $13 piece of plastic.