i found a great deal on some 10 c channel 15.3 lb /ft. I am thinking about useing it to make a low boy gooseneck trailer 32 ft long. I was thinking about just useing it and 3" c channel crossmembers every 18 in. with a wood deck. does this seem like it would be strong enough to hold two cars? and either 6 or 7k axles.