I think you already know the answer and have made up your mind.
Just because your HITCH states 3500 lbs doesn't mean you HAVE 3500 lbs available to tow.
You need to weigh your rig loaded then subtract the loaded weight from your GVWR.
I suspect you will find that you have LESS left over cargo weight than you think.
To put that into perspective, your TONGUE weight will need to be accounted for in the CARGO weight of your rig.
2200 lb trailer and cargo on that trailer MUST have a minimum of 220 lbs on the tongue (10%)up to 15% (330 lbs).
The problem you will run into with open cargo trailers and vehicles on said trailer is getting the tongue weight correct..
If you don't get the vehicle in the correct place on the trailer and look out you will have a tiger behind you..
Get the vehicle to far forward and you will easily overload such a light duty hitch and over load your rig..
Your call..
