One large Stimpson bracket with two smaller ones. Drilled a 1/2" hole in the middle of the large one and two smaller 1/4" holes on the end. The smaller bracket is bent and the same size holes are drilled with the smaller hole being on the shorter end. These brackets were painted flat black and the edges rounded since the corners were very sharp.
Put in the 1/4" bolts and wingnuts. The 1/2" holes should overlap on the two small brackets and line up with the 1/2" hole on the large bracket.
The middle bolt is tightened with a wingnut. There is one 1/2" bolt missing. It should be placed on top of the large Stimpson bracket and below the two smaller ones. Tighten it and it should hold the bracket assembly nicely. Two of these mount systems are used and spaced about a foot apart. The shovel and axe can then be removed by taking the small bolts off and pulling on the axe or shovel. The curved end will not dig into the axe or shovel and is easy to take off. I will post a pic of them mounted later. The axe required using something around the handle to make it clamp better and not be so loose.
All this was done for about $13 for the roof clamp and 1/2" bolt and about $5 for the remaining hardware. So $36 for both.