Hi Dwain, welcome to Rebreather World.
OEM Azimuth parts can be a pita to find, and an expensive one at that.
Maybe Doug can point you in a good direction.
TecMe in Germany has a bunch of custom parts for the Azimuth, mostly adapters and cell holders, some of them for CC conversion. But a pO2 monitor is a good idea anyway. They have an excellent reputation and ship ww.
BOV shouldn't be an issue, either Jakub at
Golem Gear or Tracy at
Divematics USA will be able to help. I know that Divematics does custom threads, if they haven't done them for the OMG connectors they'll need it to make and test them. Otherwise either other connectors that fit your hoses can be used, or the hose can be clamped directly to the DSV (the least convenient option IMHO).