I'm looking at 14' enclosed trailers. Not sure whether I need tandem or single axel. I am going for brakes. I'll have 1 Walker in it, 2-3 push mowers plus the regular other stuff, so usually 2000 lb's or less. Will a single axel be a smooth enough ride? My dad's saying I NEED a tandem, but the different trailer dealers are saying single is ok. Gas consumption and commuting a winding highway are issues here. Thanks!