I dont care who your accountant or cpa is (even willie haha) the chances of someone making 800k on a $1500 stake and paying the exact proper amount of taxes right off the bat are slim and none. ... this will follow you thru a couple of more April's.
Most proud Americans would be thrilled to pay taxes on that income .... but , i would not want to be the group leader of a 5 man team , unless the other 4 were willing to wait a couple of years for their cut.
Even lottery winners who have the government present when they recieve their check still end up paying later. ... There's no way you'll get it right the first time.
...Whatever you do , dont pay somebody elses taxes.