Thanks for the suggestion, I think this idea will make quicker work.
I was under the trailer checking it out today and it appears that the main frame is 2" X 6" retangular tubing and maybe about a 1/8th inch side walls. I was planning on running a couple of pieces of 6" channel the length of the trailer "parralle" on top of the main frame welding to it. Then do something like 4" channel floor joist running perpendicular on top of the 6" channel spaced out 12" on center and a 4" channel as a frame on the outter perimeter of the floor joists. I was thinking of doing this all the way up over the hitch area making it what I think they call a step deck. After throwing around all these ideas I might be in it for more money than what I could go buy a new custom built trailer for. Who knows. I do know I usually learn the hard way and from my own bad choices and experiences. I guess that is life, trying to be tight or cheap all the time. Will see how it goes. A snow storm just hit and they are saying 12 to 18" of snow so I might not get to work on it for a while. I have lived in Oklahoma all my life and have never seen this much snow. I hate winter and snow.