Three ideas:
1) list it on uship.com, and you may find a better bid. 500. is common from New England to FL, which is similar trip.
2) Look for a Rideshare on Craigslist.com, in both your beginning and ending area. You might find someone who would do it for gas money. I once found a guy to rooftop a laser from VT to OR for about 250. or so.
3) put an ad on here, and Sailing Anarchy Dinghy thread to find some racer making the trip.
Al