I'm looking at buying a used 2003 Haulmark. It's 13', a V-nose (?), single axel, and has aftermarket brakes. It's covered. I'll be carrying around about 2000 pounds of machinery on a highway, slightly bumpy. Do I need dual axels with 2000Lbs? I'm told it's a good thing but I want to cut any weight off that I can for mileage. There are other brands out there but Haulmark seems to be moderately well built. And well built for the price. I just can't afford one of the expensive models. Any thoughts on that? Anything in particular that I should be checking on the trailor? THANKS! I appreciate anything at all here.