I have towed 2000# with a late model Ridgeline. Being that its not a full framed vehicle I have no idea how it will hold up under the towing stress over time.
When you max out a soft suspension vehicle, you might lose the ability to control it when you are forced to push it during an emergency maneuver.
I would see how large its fuel tank is and calculate expected gas mileage while tow a TT opposed to a boat. Do the math and see if its worth it to you to have to stop more often to refuel.
I knew (felt) that 2000# trailer behind me and I was towing it by myself. I would say, once you add additional payload such as people and load up some stuff inside the bed, you are going feel it even more. Be careful not to overload the rear axle and tires.
I would go as small and as light as possible. Taking it on short weekend trips might work. Crossing the country will be another adventure.
verify more up to date info on the Ridgeline forums........
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/18516880/print/true.cfm