after social, medi, state tax,around 20% in total,(let's suppose he didn't pay any fed tax if he did well on his tax planning), at most left 430k, ,
deduct living expenses (at least food 8000*6+ car's oil, insurance 3000*6+ car cost 20000=86k), at most 344k left. And this 344k even didn't consider travel and other once-in-a-while luxury items.