I have a couple of 416s alnico Vs in storage. These are in good shape with no tears, etc and they work well. These have been purchased from others during the last 3 - 4 years, so I don't know where they have been for the first 30 - 40 years. My guess is they are circa early 1970s... (light green paint)

Should I consider re-conning these or should I just build VOTT boxes and play them till they are dead?

I've reconed similar drivers at GPA and they have turned out great.