I think that if money and space were not issues, I'd probably have 2 tanks set up, both tied into the same system/sump for ease of maintenance.
One would be a mixed reef measuring 48x48x24 (about 240 gallons) and be three sides viewable. The other would be a monster FO/shark tank measuring 96Lx96Wx30H (about 1200 gallons). I would put all the big non reef safe angels, Tusk wrasses, eels, a horn shark or two, a wobbegong and blue spot sting ray, that I'd love to keep....
Hey if wishes were fishes, we'd all be knee deep in carp right now....
Nick