Here is another AGM with a stress cracked fount saved. I bought this thinking it was in working condition, only to find it had a tiny leak in the fount.
It had a perfect vent and the original yellow globe.
Monday I took the vent to the paint dealer and had custom auto paint mixed to the right color then put into rattle cans.
Then took a Sears fount. Drilled and tapped it to take an adapter that would accept the AGM valve. If the fount had the pump on the opposite side you wouldn't be able to tell the difference.