glass bow tank, not sure on skimmer. run some VHO lights with a couple small watt MH just for shimmer effect, so you dont over heat. and a ladder and some scuba gear. put a nice plastic chair in the corner so you can get in and watch for a while.
Deltec skimmer for sure. (or you could get 500 fission nano skimmers...)
large dual chamber calcium reactor
fluidized sandbed filtration
sunroof over the tank
Acrylic tank for sure... 500g glass would be waaaayy too heavy.