Thanks guys that is really good advice. But getting the single cylinder system working would require new brake lines, and since I have to buy them it makes more sense to me to go ahead and install the dual system.
However, and I should have clarified this in my initial post, what I'm looking for is a dual master cylinder without the booster. However I have not been able to locate a dual without a booster from the major suppliers. So I'm thinking I'll have to go with the dual with booster.
That is how I'm thinking. But as I said your posts make a ton of sense.