Air Key West Britten-Norman BN-2T Islander N685KW for the HTAI model.
These are textures only.
The HTAI Britten-Norman BN-2 Islander model is required.
It can be found at http://htai-models.com/downloads.html
The converted P3Dv4 model can be found here:
https://www.alpha-india.net/forums/index.php?topic=26166.msg262221
AIG/OCI flightplans available here: https://www.alpha-india.net/forums/index.php?msg=418687