My Truck:
2011 GMC Sierra 1500 Quad Cab, 5.3 liter, 3.42 gears, with a max tow rating of 9500 lbs. I have a max payload rating of 1420 lbs. I have a max tongue weight of 1100 lbs.
My Trailer:
2004 R-Vision Trail Cruiser 30 QBSS
Dry Weight listed 4370 lbs
Actual loaded weight 6006 lbs.
I am WAY under max tow rating
I am AT Max Payload for my 1/2 ton
Okay to drive, not scary unless tongue weight too low then I get sway.
The trailer you want is TOO heavy for your truck. You decide for yourself if you feel it is safe to tow overweight. You asked for an opinion, so we are giving one.