What an awe inspiring cake idea! There was an exhibit of Dale's glass at the Frederick Meijer Gardens in Grand Rapids, MI a few years back, and his work literally takes your breath away, in size, shape and especially color.
The Gardens purchased a glass chandelier, similar to the one you posted, only in a different color scheme. I thought everyone might like to see it for inspiration as well.
Good luck on the cake project, and best wishes to you both! I'd love to participate, but don't feel that I can pull it off quite yet, but maybe I'll give it a try.