Some resolution.
I finally made it over to see the guy with the 4 foot blade.
I have known him for a very long time, he was one of my high school teachers.
He had the blade sitting out, it had been in his barn for years. It was bought for a BX like mine many years ago. But it was never used, they don't have that tractor anymore. They farmed for years/decades most of their machinery is much bigger.
So I can see the blade is in good shape and pretty heavy duty, other than walking up to it I really didn't look it over. We make our deal and I told him I would be back later to pick it up with help.
When I get it home my son is helping me unload it and I see on the back it is a woods brand 60. So its a five foot blade after all.
I'm can wait to try it out.