For all you guys that have or have used them, give me some advice on what to look for. I am mainly wanting to get a flat car hauler to move a few cars of mine around, when needed. I have heard that I need a 20 foot, cause otherwise you have a hard time getting out, because of the door hitting the trailer fender. What is the weight difference in a wood topped one versus a metal diamond plate topped one. Is tubular construction better than channel. I don't need "super fancy", but I do want it to look nice. Also, I want to put a winch on it. Thanks for any input.