AAA, I ordered a custom enclosed trailer for my tx7015 with 6 hinges across the drop down rear door. Had extra thick supports inside door spaced at track width (40''). Make sure the spacing on the floor supports is no less than 12" on center. (normally its 16"). I would also strongly recommend upgradeing from the standard 1750 lb springs to 3500 lb springs. ( I learned the hard way) Also, run RADIAL tires! You probably wont get more than a year or two out of a set, and make damn sure they're load range is 'D', 8 ply minimum. Oh, and one other thing, TORQUE the lugnuts consistently! Learned that the hard way also. You are going to be at the extreme end of the weight scale for the trailer, but you should be fine. By the way, my trailer is dual axle 14 foot and the placement of the grinder over the axles is perfect, and needs to be precice to tow safely. Hope this helps...Thirdrail