PLV-100 Repair Technician Consultation Needed

My wife's used a PLV-100 since we were teenagers (that makes over 30 years now). We now have a few of them, and a bunch of spare parts, but nobody to service them and, unfortunately, we've not found any others she can breath on due to the uniqueness of the non-invasive ventilation setup she uses. (I don't want to go into that at the moment). Now, my goal is not to have to rely on anyone so I'm trying to find a professional to consult with to learn the ins-and-outs of the thing. I have the manual, and have taken the things apart, but no experience with actually servicing or repairing them.

Now, I've spent my years as a caregiver for her making things for her. She's 'everything' to me. I do electrical engineering and mechanical design, I even design and 3d print custom non-invasive ventilator nosepieces/headgear for her, designed our own feeding pump system with controls, etc. (Everything's approved by high up doctors and even local hospitals). BUT... a pro's a pro!

I'm willing to pay for the help and experience. Thanks.

(I'm not sure if we can be contacted through here, so please feel free to email me at jaggz.h {over yonder at} gmail.com

Thanks again; we're getting desperate as these things haven't been serviced in a long time, since Philips-Respironics terminated support of the line.