Safari Supplied me with a drawing of the blade clamps. I had my buddies with the laser cut out the pieces from 0.125" aluminum. Photo 1 has all the parts they are stacked up but there are enough there for 2 clamps.
Photo 2 I have welded 4 of the pieces together into a "W" shape. You can see how they fit over the support post. I will weld the one of the curves pieces to the "W" the other will be hinged at one end and have a hasp at the other.