I think, you have no rae to build a team with besides samui. You should focus on kage-, jinchuriki-, or ninjawartreasure to get a good ninja. once you have roshi, you can build a team with watermain, fuguki, roshi and kurenai with her breakthrough or another healer. even with low initiative i reached six paths with this lineup. (sry for my language, im german ;D)