I've schemed ways to add a compact air conditioner for use when
connected to shore power.  This unit is 3 inches too wide to go in
the cabinet where my fridge used to be:

http://www.amazon.com/exec/obidos/ASIN/B001THVNUO/sbw/

It only draws 6.7A, so the Vanagon's 15A hookup would handle it.  I
was thinking of using the old fridge vent for its exhaust.  But I
hate to think about modifying the cabinets.

Has anybody installed an RV air conditioner on top?  They all look
like overkill!