From Chichester to La Rague (right next to Antibes) I'd say £6199.30 inc VAT. That was a Phantom 42 september 2002 on a super low loader, including dismantle the radar arch etc but not putting it back together again. Peters and May did it, and excellent service imho
If you are not constrained to a particular date so that the transport company can get a loaded return you can strike some good deals.
Sealine S37 (non flybridge) from Southampton to La Rague GRP 3000
David