I like GRRRRR’s suggestion of heat races myself. It lets everybody get at least some TV time on Saturday/Sunday.
I like heats also. Just that with trucks, Busch, Cup, qualifying and practice, time would be a little tight. But since you asked, my plan would be;
Daytona 500, just as it is
Race 2, Last year’s champ and Daytona winner in, everyone else go or go home
Race 3, Champ, Daytona and race #2 winners...everyone else, go or go home....and so on.