I've been following along as well, great build so far and wonderful attention to detail. This tank has the potential to be something truly exceptional, thank you for sharing.
As far as fish and coral selection goes, this might be a fantastic opportunity to create a monster display that can showcase the best that aqua-cultured coral, fish, and inverts have to offer. Imagine a tank this size, which is as completely stocked as possible with animals raised solely for our needs, not stolen from the ocean. At the very least it would be possible to get all of your coral from growers and not only would it not impact our ever shrinking natural reefs but it would also provide significant business to all those growers who are making the effort.
Just a consideration as well as a person choice I made in my tank. Its not as enormous as yours at 300g but minimizing my impact on natural reefs was a key stocking criteria for me.
I'm sure there are many people here with a wealth of resources allocated to aqua-culture. It would be great to see some large schools of aquaculture fish in there. Nothing looks better or more natural then a large school of small fish in a well thought-out tank.
Oh and I use the APEX aquarium controller. Great product IMHO.
Just my .02! Great going so far!