If anyone has a Wescott's catalog they can look up the Ford frame dimensions from the diagrams in there. My catalog is up in Wa. so I'm afraid I'm not much help on this one, and they don't have this info on their web site. But Al's suggestion should work, just make sure you put gussets to any "outrigger" bracket.

Al, you're welcome to visit, but I'm only going to be here another week, so you better hurry.