Ok I am trying the photos again. Well you can at least follow the link and get a view of what we ended up with this first try. We went to Africa and have not been working on this project for a few weeks. I will eventually get pics where you can see all angles and how we mounted the flanges to attach the front legs at an angle, and it was very simple and works very well. Micci is shooting slightly down hill and demonstrating a front rest but bags would have probably fit more comfortable in this situation. It was her first time to try that particular rest.
What I have learned is that the two additional legs out front make a world of difference in stability and also help in leveling. I did not plan it that way but what ends up happening is the three feet for the center post give you stability for your seated position and create one leg for the top and then when you put the other two legs down you in essence creat a tripod effect for the top and can also level the top as well as stabilize it. We were in a slight breeze for Western Oklahoma (15 mph or so) and we were able to have fun out to 200 yards with out much trouble, at least from the bench. And we were on an unprotected flat.
What I will do differently: I will not forget to let the seat support pivot up and pin in up or down position. I will use 5/16 rather than 1/4 pins(the lady in the picture, her husband needs to lose a little weight and in some of the pictures in the shop that is my Dad and he did not bend the pins), I want to get teflon sheeting to line the tubing of the seat support to allow it to swivel around the center point more easily. The weight is heavy enough that if I were carrying it in very far I would probably put it on a cart or two wheeled dolly.