Thinking of purchasing one of these units at an auction about two hours from me. Trying to avoid getting there and finding out tires are no good, etc. So I was just planning to take my 7x14 single axle on the road trip, as I know it is well prepared for something like that. Anyhow, does anyone know how wide these compressors are. Will it fit between the rails on my 7ft wide trailer? I feel like it should but rather be safe that sorry! Also, what kind of weight are the things. Don't want to worry about overloading my trailer either! I'm fine putting tires on the thing but would rather do it on my own terms and in my own town. Any help and ballpark figures would be much appreciated!