I am relatively new to owning a tractor. This October will be a year and my hours at my 9-5 have been cut. I'm looking at the option of being able to do some work on the side by utilizing the investment I have made with my tractor. I have a Kioti 3510 SE with FEL, forks, tiller, BB, and bush hog. The tractor weighs in at 4k lbs, the bush hog is just under 1k lbs. I'm not sure about the till but I'd guess maybe 500 - 600 lbs and the bucket and forks aren't substantial. The tractor sales person told me that you don't want to be right at the top of the weight limit which makes me feel like a 7k trailer may not be a wise investment for the long run. I thought about a 10k lb trailer. Then I wonder about the tire size between 15 & 16" tires. Any advice would sure help.