MONTICELLO, Ky. Kentucky's houseboat manufacturers once thrived by churning out luxurious floating residences, but the industry was nearly capsized by the economic downturn. Now it's dabbling in a new venture as it looks for a different course the construction of moderately priced, energy efficient landlocked homes. Houseboat maker Stardust Cruisers has built two relatively low-cost modular homes in a test that area residents hope will help revive the industry and bring back jobs to this struggling town on the edge of Appalachia....