Wanted: good heater/air cond. vacuum canister

ten years ago that valve assembly was not reproduced. One OEM piece was listed on ebay for some ridiculous price. So most owners and repair shops opted for a generic substitute.
Today that exact assembly is reproduced. Vintage Air maybe? I forget. Still higher priced than the generic type but not outrageous for what it is.
I don't know that they offer the vacuum servo and/or water valve separately. Replacing half of it doesn't seem wise anyway. It can leak water as quick as leak vacuum. In my experience the water leak is much more common regardless the type ( vacuum actuated or cable actuated ), brand, or application.