Success!
Here's the patch...
on-air-light-kmtr-v6-OSC.pd
Thank you both! I waited a long time to ask for help and.. All I can say is that I wish I did it much earlier!
Funny how people tend to wait..

I think I'm going to deploy it today and see how it goes. Hoping for as low-maintenance as possible.

Obviously- feedback/suggestions are welcome.

I guess... Where would a good place to put a pd patch for people to use? I know there's this site... I see github pages a lot.

@jbaker Just leaving it here it will be found, but if you can give it a good title and description (which will help people to find it when they are trying to accomplish something similar) you could post it under the "patch" section that you will see on the home page for this forum.
Well done....!
David.

Thanks! it means a lot. To both @ddw_music and @whale-av ! In the past, while digging around the internet for info on puredata, I've come across posts from both of you that ended up being the best information I could find, so yeah, I've been pretty stoked for help from both of you. It's working! I'll setup another patch for another studio here.. It has a different lighting board, but I feel fine about setting up OSC for that. I'll write back with a report on the patch's resilience after some time has passed.

@jbaker said:

Success!

A-ha! Fantastic

I had a feeling you were just that close -- happy that you got it working.

hjh

Hi! Just wanted to follow up-
The patch you two (@whale-av & @ddw_music) helped me with is still working as designed!
I just deployed the second pi with the slightly modified patch for the second studio-
For those who could use it, here's the program with OSC commands EOS Element 2 lighting board, and X32 audio board by Behringer.