yea thats pretty much what mine looks like except the mount and one or two modifactions I had to make sense the picture did not give enough detail for me to see how the inside was built. Mine works great from what i can tell.
I've had two ask for one but told them they would have to call Parks to get one. I might copy someones idea but I will profit from it.I've had a few ideas that others used and one thats been sold . Coping is flattery ,profit from it is another story IMO.