Income- usually the person in charge has a set salary, voted upon by a board of some kind. If there isn't a committee, or board, or whatever, then I suppose you choose yourself- just don't make your organization look bad by feeding all the money yourself.
Competition- while I like your choice of location, I'd move to somewhere else in Florida. There aren't that many aquariums there (Clearwater, Miami, Orlando, and Tampa have the only ones that I can think of, besides Mote) so a different location would lessen competition. I don't think Mote could handle the competition- one of the two would sadly fall. Mote is also a longstanding rescue facility, therefore having two in one place is in no way ideal.
Costs- everything you have planned is going to cost money, but with varying amounts. In addition to donations from companies (if you can secure them- most places don't just give away money) you should seek donations from private donors, and charge admission that is enough to sustain your upkeep (which will be expensive-at least you don't have to mix saltwater).
Competition- while I like your choice of location, I'd move to somewhere else in Florida. There aren't that many aquariums there (Clearwater, Miami, Orlando, and Tampa have the only ones that I can think of, besides Mote) so a different location would lessen competition. I don't think Mote could handle the competition- one of the two would sadly fall. Mote is also a longstanding rescue facility, therefore having two in one place is in no way ideal.
Costs- everything you have planned is going to cost money, but with varying amounts. In addition to donations from companies (if you can secure them- most places don't just give away money) you should seek donations from private donors, and charge admission that is enough to sustain your upkeep (which will be expensive-at least you don't have to mix saltwater).