No idea about renting them except for this place.
Brideside Marina
Here's the website.
http://www.bridgesidemarine.com/index.php?option=com_jomres&Itemid=26 That's all I have. Or you could check out the other Brostock SML thread and see if you can't hook up with some of the people who will be bringing their boats down. Other than me and Zach Burns, who posts here from time to time, I don't think anyone else is from SML who could give you a pull, and I don't have an inboard.
Good Luck!