You realise that with Jims Kits that you are paying for a professionally developed package, not just the hardware but all the development that goes into it as well.
Personally, I believe that Jims PID Kits are great value for someone like yourself as there is no need for expert technical knowledge to install and then use. Id advise talking to a couple of application engineers at some reputable process control hardware supplies establishments. If youre looking for info on previous PID installations that some CSers have completed, a "Search" will reveal where all this info is hiding......
All the best,