Take Mikes advice, get some experts help., I can over look a few hundred lbs,, but 1000 lbs is a lot to over look.. We call that in the real world,, a 1/2 ton..
Its not so much horsepower but chassis and springs,, brakes.. Your hitch weight itself would be the down fall I fear more than the trailer weight overall..
Better to be on the safe side than the wild side.. And trust me when I say when things get out of shape it can get wild real fast.
2012 Ram 1500 Tradesman Hemi, 4x4, 6 speed
20mpg empty, 14 mpg with 27' Overlander.
Today is the first day of the rest of your life!