Congrats ! I know the feeling; last week I fixed my central locking system. I thought it was doomed, and it was only he diaphragm in the fuel door, and a misaligned door. The drivers door lock wouldn’t always move the vacuum valve enough. At any rate they work, and have held vacuum for more than 48 hours. I can also get around 10 locks & unlocks.

Now I will attempt the vacuum line replacement for the A/C & Heater system.
Wish me luck !
Robert