I have to ask, where are you getting the 3000lb capacity from. I would think a reasonable payload for a 1/2 ton is way under that. Your trailer pin weight is usually calculated as dry weight with absolutely no stuff in the trailer, like water, propane, batteries, clothes, food, etc. Add that in and I think you will have a struggle at best. You already know it's listed for 7K lbs, no 9K lbs.