For Drazach Thicket or Morastov Trail I would just take basic 7 hero bars http://www.gwpvx.com/Build:Team_-_7_Hero_Player_Support ^ Most people use something like that if you are doing Froggys with heroes use the same thing
As for SoO you can pretty easilly do it with heros with a smite party http://www.gwpvx.com/Build:Team_-_7_Hero_Smiteway
Both SoO and Froggys are not worth soloing because they simply take too long but pretty much every other dungeon can be soloed on an assassin or ranger