Thanks so much for your reply. This picture is not of the Excalibur and from what I vaguely remember of the Bolivar, I don't believe that it is it either. As I never saw the Neptune, maybe this is a picture of it.
The site is up, but currently most of my work is having to do with the military life of the Excal. I can't wait for all the comments when I do the page concerning the Excal's RPF! I was there at the very beginning.