I need a trailer for my lawn care that is at least 5 feet wide. I need to be able to fit a 50" mower in it so a typical 4X8 won't work. I don't really care how long it is, just 7-9 feet. I need to keep the length down some though to keep it small. I just need to find the cheapest 5 by something I can find. Where should I look?