What are your questions on wiring? I haven't drawn up my prints, but I could give you the basics of how to wire pretty much anything.
And what do you mean you don't want to go PID based? Don't want discrete PID's such as what I used? Mine actually use discrete hardware that communiates via Modbus/RTU over RS-485 directly to the PLC. So I control temps right from the touchscreen.
Lastly, your link provides a Kal Clone with control valves. I have yet to include vavles in my design, but it only takes 15 minutes to add the drum sequencing logic to a PLC.
And PLC logic is easier than writing Arduino.
My Automated Brewery WIP
El Dorado Pale Ale, Cider V2.0
Cran-Apple Cider, Sour-Funk Cran-Apple Cider.
Jah-lap-uh-no (Jalapeno Cream Ale), Four You (Orange Chocolate Oatmeal Stout)