Measure the height of the transom (back of the boat) to determine the length of the motor required. On a windy day with the wind at your back...a taller transom is better to not have water come over it.
Most 10-12' boats will be short shaft though.
All of the boats you listed are pretty solid. Smokercraft, Starcraft, Lund, and Duroboat are perfectly acceptable small craft. I also wouldn't rule a Livingston in those sizes, as they will be much more stable than the others.
I wouldn't preclude a small jon boat either.
Most 10-12' boats will be short shaft though.
All of the boats you listed are pretty solid. Smokercraft, Starcraft, Lund, and Duroboat are perfectly acceptable small craft. I also wouldn't rule a Livingston in those sizes, as they will be much more stable than the others.
I wouldn't preclude a small jon boat either.