I think you would end up with $350 million if you took the lump sum payout, after the government gets their cut in taxes.
I would give $5 million each to my parents, brothers, niece and nephew, and my favorite Aunt. They should be able to live like kings on that. Then go on a long vacation and cruise around the world. I would invest most of it in safe government backed securites, treasury bills, and gold.
I would build a huge no kill dog shelter and the dogs would eat steak once a week.
I would ask Stephen Ross if he would sell me part of the Phins. I would fly in to every game on the road and at home. Get me a nice air conditioned suite and invite my FH buddies to live large on me. I would probably get a nice yacht that I could park in South Beach....gotta have a placed to sleep.