I have been thinking about this too, because if I am going to buy a new motor I would want to make sure my transom is solid.
This is what I was looking at it, you can pick it up at the factory in Ocoee which is a suburb of Orlando. I have watched some videos demonstrating the installation process.
http://www.boatoutfitters.com/Coosa-Board
https://www.youtube.com/watch?v=y6132VcsXBk