That trailer is going to GVWR at something north of 7,000#. Your tongue weight will be well over 900# including the WD hitch. You will be out of payload long before you get anywhere near the so-called 7,200# of towing capacity.
IGNORE all so-called "dry weights" as they are worse than worthless and potentially dangerous. Towing a 32'+ trailer with your half ton pick up will not be much fun but if you stay close to home and on the flat, it can be done. Keep in mind that just because you "can" do something does not mean it is a good idea.
As always... Opinions and YMMV.