I haven't decided if I am going to buy their stand and canopy. It really depends if I feel like being lazy or not. I can build a over the top stand, meaning using only 2*6 for half the price of their stand.
As for a sump I am planning on using a spare 75 gallon I have laying around. I haven't finalized a actual design yet.
Prop-frags I have been silently following your build and I am using it as a reference guide; you truly have an amazing tank. I agree with you, coralvue makes an amazing product and they back their products 100%. I am thinking about using their Reef Octopus Diablo XS 350. What do you think?
I am still trying to decide on which type of drain to use: herbie, bean animal, durso, etc. Any one have any suggestions? The sump will be under the tank in the stand and I don't object the idea of having external return pipes.