I am interested in adding a genset to my 393. The marina suggests a Panda 4.5 KW. I have 2 marine A/C units. They think there will be a problem with installation in the port cockpit locker since the big batteries are already in there (may list). They think the 4.5KW will meet my needs. Does anyone have one of these & does it work ok? Was installation satisfactory? Is this what Beneteau uses as optional equip. (size & location)?Thanks - Jim