I think I'm going to fab new cross members, move the the back one in so that it sits on top of the frame rails and then shorten the bed to look right on the short wheel base. If I get real frustrated I will throw the box and fenders back on it.
By the way, it was a clean 50 3/4 ton flat bed that got me headed this way in the first place. Matter of fact I almost bought it. He wanted $3500.00. If he would have taken $2500.00 I would have.
Thanks for the help guys.