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,
so you will be paid the bounties with ETH, how many ETH that the project will put into the bounty?
which means it will not affect the price of the token
but there is many thing that can affect the price of the token if the token already listed in exchange