RE: Why are hunts so damn expensive???
Not to be a smartass, but the answer comes from economics 101: "because the market will support the high prices." You can bet if they weren't selling as many hunts as they planned to, they would drop their prices to a point at which they can fill up theirschedule with hunts. If they can't drop the prices any farther due to various costs they have to deal with, then they are likely to go out of business or change to a different business. When that happens, supply drops, and everybody elses' prices may go up to take advantageof the situation.
Regarding your business idea, yes, it would be legal provided you file the necessary paperwork with your local, state or national agency, pay the appropriate taxes, and make sure to not misrepresent the hunt, accomodations or anything else.
So, basically, until people stop buying hunts at current prices, or you significantly increase the supply of available hunts,it will remain expensive.