The owner's manual gives a recommended trailer weight of 1000 lbs with a 100 lb tongue weight. I would call a trailer rental/hitch installer business and ask if they have any suggestions, but I doubt that anything can be changed safely to make this car work.
Even if you can fit 500 lbs in the trunk and back seat, it will fall far below what you need. Do you have another vehicle to use?
Even if you can fit 500 lbs in the trunk and back seat, it will fall far below what you need. Do you have another vehicle to use?