Dream huh, money no problem?
OK, here goes another one in the basement!
20'x15'x4' @ aprox 7,800 gals, walk around view on three sides and from top (4' avg chest level), filtered by custom made computer controlled wet/dry unit with UV sterelizer, heaters etc and a humidity control system in a seperarate filter/maintanance room (fourth side on end).
Lighting would be custom internal/external.
A hired hand to do maintanance.
South American Tank.
1 Silver Arowana
1 Oscar
1 Jaguar
1 Blue Acara
2-3 breeding pairs Convicts
1 Black Devil Stingray
1 Motoro stingray
15 Red Hook Silver Dollars
2 sexed pair's Jagaur Cats
1 each Snow King, Common Sailfin Plecos
75-100 each of Neon Tetras & Red Eyed Tetras (dither/target/live food, maintain stock levels according to attrition.)
Natural sand and fine gravel for substrate.
Large plastic native plants, well anchored.
Asstd large rock structure and caves.(all preformed for easy removal/cleaning)
Either a really nice stump with lots of roots, or a tree branch and asstd bogwood pcs.