Anyone with a Beneteau 323 with either factory installed or aftermarket installed a/c? I am planning to install a/c on my 2005 323 per the layout diagram provided by Beneteau but I cannot see how it is possible to run 5" flex duct to the main cabin as shown in the print (along the hull behind the head liner). I would like to know it really can be done before I make a major investment in time and money. Some photos would be awesome.