thats better plan then do ICO after bounty, cause bounty hunter can sell their stake/token with lower price than ICO price
The bounty reward will be paid at ETH, which means it will not affect the price of the token
The way you are managing the company and bounty in a different way which you are giving the opportunity to the investors because from the many ICO's people used to complain that bounty people are dumping the price. With this project, the community will understand who is dumping the coins.