26 sonic, where are you looking to place the unit? I see they put them under the sink in the newer sonics. With all the space under the berth, would be nice to mount it there, but I was wondering about the long hose runs.....
I was watching ebay for AC units, theres a lot out there to choose from. Have so many other things to do, haven't researched it that much.
Keep us posted of your project.