Assuming you can get past the hump where you mix up 2-3 times as much as you need for the job, the quart (?) size kit sold by Kitfox would be almost exactly the right amount. I finally got to where I could mix up almost exactly what i need, but because it took me a while to learn that skill I have supplemented with the dual mixing tubes used in the squeeze gun. Which is very handy at times and turns out to be a lot less wasteful than I thought.