I would love one of those manual chain saws as well, but it appears that it takes two hands to hold it, and a wife to manually crank the cutting blade. Unfortunantly, I don't have a wife, so it won't work for me.
I do have a wife. She can be my cranker. I recently bought a new smaller chain saw because I am now afraid of the big one since I basically have only one good eye. But I am also afraid of the small chain saw and have never put gas in it. I tried it manully and it just works like a hack saw.
I love this awesome lowering kit! I have seen quite a few cars and trucks recently that could really benefit from this.