I was reading Alamosa thread on his stand and thought I would update this one. I made new anchors, 24" rebar with a piece of 2" welded on the top, think T shape. And I switched to ratchet straps. Since this will be transported in a truck, weight and space are not an issue.
I have used this stand for 5 nights with no problems. No anhors pulling out or even loose. The only thing, and is was not really a problem was with 2 days of rain, the end sunk in the ground, but only about 1" to 1.5". The next morning, when I noticed, I just tightened the ratchet straps and no more sinking issues.