Unfortunately, no availability via Grand Case either according to SBC. We have always been carry-on only and transferred through SXM with SBC. We have never taken the ferry, and I am not sure what is involved logistically (immigration, exit out into SXM, taxi, timing, etc.). Our 2 daughters are traveling alone. They are both capable young women, but I am a little concerned about safety and the potential for glitches getting from the airport to the ferry (would also like to avoid them being "green" upon arrival in SBH if possible ;-)). Happy to receive input from any one with experience going this route though. Ideally, though, we are still hoping to find others facing the same issue and willing to share a charter.