Told ya! I knew Graham had a plan.
I have seen them with brass bars for each light, too, but I like the spiders better. I have done repairs of pool table lights where the tops were pulling away. There is a lotta weight in one of these, so you might want to run wire from top edge to bottom in a few places to hold them together vertically.
For a rustic look, you could have a blacksmith make a frame and then you would only have to put panels in it and do the wiring.
Rebecca
Yup! Wire installed in every one. As you say, there's a lotta weight.
Vertical crown and skirt, with hard metal came around it makes it relatively "sag-proof".
I saw (played under) one of the lamps recently. It's about 10 years old, I guess. Holding up pretty well. That one was wired with ordinary sockets and frosted "Fat Albert" incandescent bulbs. Good light. The spiders are attached to the frame at the bottom of the skirt. I should probably update the drawing to include things I learned during and after the initial lamps.