I've got a 2007 Karavan trailer rated for 2,200lbs. It's carrying a 16.5ft Alumacraft boat with a 90hp motor. The dry weight of those is 1,400lbs. Add in another 300-400lbs for three batteries, trolling motor, props, and gear and I assume that my rig weighs around 1,750lbs. That puts me 450lbs...