Thank you for the additional info.
I have a couple more questions and after I start my search I may have more questions so I make sure to get you correct information. I have done several like this it's very time consuming since it must be correct for obvious safety reasons.
On truck side for park brake, you only have a single park brake button for brake release correct?
You have No tractor protection valve or hoses? This is the valve on back of cab with the two outlets,,,one for park/service hoses.
You mention solenoids in last response,,,, what solenoids? Or are you talking about valves?
It's just important we both use same terminology so neither one of us gets confused.\
FYI: I'm usually around during daytime hours but do run errands, be assured I always respond,, good or bad news I try to be a straight shooter. I'm on Central standard time in the USA!