I wonder how much the mechanical staging effects owe to similar staging in the LotR musical? Did you see the musical when it opened in Toronto? I didn't but heard there were similar problems with getting all the lifts to work correctly.
Does viewing the Ring cycle give you a different perspective on LotR? What are the parallels between the two works? There are two books out (well, one already published and the other forthcoming) that look at Wagner and Tolkien. They sound interesting. One is
Tolkien and Wagner:The Ring and Der Ring by Christopher MacLachlan and the other is
Wagner and Tolkien: Mythmakers by Reneé Vink. Very intriguing comparison between Gandalf and Wotan, apparently in the first! (I haven't read the book.)
Both are from Walking Tree Publishers and can be found
here.