Several of the seeds already posted for TU31 fit this criteria. You should take some time to look through them (about 3 pages worth). Hilly forests are prevalent on almost all seeds.
Villages, however, will never generate right inside a forest, so you'll need some plains, desert, or savannah biomes interspersed with the forest biomes to enable the villages you want to generate. Either that or you'll have to build your only villages in the forest and populate them with villagers either by curing zombie villagers that spawn in survival or using spawn eggs in creative.