Congratulations for this wonderful tank. It is one of the best I have ever seen.
I would like to make you a question regarding the low profile overflow adapters you have on the tank. How did you connected them to the sump? Do you have an external box on the back and then some bulkheads?
One last thing. What do you have between the glass tank and the stand? I can see on the picture black soft tape. Is that all?
I hope you can put some more technical pictures of your aquarium.