Welcome to the Sedum, Semp and Jovi Cubit, Den.
Wow, that's quite a project! Sounds like you've made it really sturdy, which is a good thing because its so big. Do you already grow semps so you have a bunch to use or are you having to purchase them to put on Buddah? Yes, please share progress pictures - it's going to be awesome when it's all filled in! Do you know the ID of the last picture? It's such a pretty color.