I would suggest that you find someone close who can core it out for you. It would be a shame to leave 90% of that beautiful wood on the floor. If you can get even one core out of it you'll have saved 80% of the cost of a piece that size. Once cored, yes, turn an open bowl with it. You might use the inner blank for a hollowform if you're comfortable with those. Regardless what you decide to make with it, you're going to have a beautiful piece once finished.
Working flat so I can play round,
Repentance Is The