BANG!: The Dice Game, Old Saloon Expansion

Can this expansions contents fit in the bang the dice game box?

Does this expand the number of players that can play beyond 8 with the original dice game?

Is this the same expansion as another of the same name listed on Amazon? The box front of the other version has a window showing two extra dices.

Does this come woth additional die? The loudmouth and coward die?