Well, depending on the number of specimens you wanted to hold. I would say between 2-3 ponds ranging between 10,000 - 15,000 gallons a piece. With filteration, pools, specimens, salt, sand, rock, ect., ect. I would say to do everything 1st class you would be looking at a price range of $50,000 - $100,000. However it could be done for alot more and alot less depends how the person(s) decides to go about it.