Ha! I was just coming back with a follow-up post to those goading me to get ROTA 2 to say that "thank you, but I'll stick with my single box of ROTA 1" and saw your build. And now I'm thinking: "if I got more ROTA (1&2), I could probably ditch those Egyptian tiles I picked up off eBay and save some space in my Alex...ROTA isn't exactly Egyptian, but could sub in for many types of ancient, advanced civilization and frankly looks sooooo much better...."
Darn, I think I've caught the ROTA-20 virus and the only cure is more ROTA!
And, absolutely beautiful build, BTW.