In another thread I argued that it would cost about $500 in parts to make a Chill Wizard and that while Sabco is making a buck on them, they aren't making the killing everybody thinks they are. On this product, however, having build my own RIMS brewery, there is definetely major cost savings to be had in doing it yourself. Lets have a look.
Basically it is the exact same setup I diagrammed in my
https://www.homebrewtalk.com/f51/rims-dummies-114997/ with the exception of the fancy PLCC. I recommended using a $45 PID instead of a $850 process computer with touch screen. If you view the thread, you could build one for about $325 without a mounting frame. If you are so inclined, standard quick disconnects could be used instead of sanitary connectors for additional cost savings. For those who may consider a build like this the DIY skills needed are low with only a good set of pliers, some wrenches, a pair of diagonal cutters, a flat blade screw driver and a utility knife being the only tools needed. Most of the project would involve fitting some prethreaded plumbing fittings together and some minimal wiring. It is within the reach of almost all home brewers.