A driveaway is unlikely, there usually isn't much delivery traffic at that time of year on that route.
Check with a national rental company (e.g. CruiseAmerica) that has a widespread network of agents and wiil do one-ways. Many will not.
Expect cost to be high, a whole lot more than airfare. It is not unusual for rentals to be $1200-2000 per week, include mileage only 100 per day, so excess mileage and one-way supplement could more than double the rental, and you'll buy gas at about $0.50 a mile this season.
If you are soliciting a driveaway here, rather than advice, you maybe didn't read forum rules?
