Don't know the exact layout of the 282, however installed a Mermaid 6500 BTU unit under the stairwell on the port side of my 2000 272 Sailfish. It is aft of the refrig and can be accessed/installed with the refrig out. I am sure Cruise Air, etc. make a suitable unit/size to fit in this area. The Mermaid unit has worked well and cools the boat adequately. In 95ish F temp in the sun, the unit cools down to about 15 F below ambient. Unit has been used only at dock on shore power. As can be seen on another thread, I am now setting up to use a Honda 2000i when underway or at anchor. Check out BobP's threads on his thoughts for an A/C, probably not exactly right physical layout approach for your boat, however, some good thoughts and comments. Hope it works out....