Wayne
Not sure about launch sites around Boca Grande, however the islands to the south, Captiva and Sanibel offer several nice spots to kite.
Roy Massey at Ace Performer can help you with the where and when of kiting in that area.
http://www.aceperformer.com/
aceperformer@aceperformer.com
941-489-3513.
Your options to the north around the St Pete/Tampa Bay area are unlimited during Nov.
Info regarding kiteboarding launch sites, lessons and weather at
www.tampabaykiteboarding.com
While in Boca make sure to get a boat ride out to Cayo Costa State park, one of the many treasures along Florida's Gulf coast.
http://www.captiva.com/stateparks/cayocosta.htm
Take care and good winds
E