Jedi Master and Apprentice Bundle - Worth it?

Is it worth it? Finished first 3 Tiers and now don't have the required characters... Right now the Jedis I have are 7 star Luminara (Gear 9), Ahsoka (Gear 7), JC (Gear 8) and 4 star Barriss (Gear 7)... I am no where close to have another Jedi up and running...

If I purchase this pack, how far would I be able to continue on this quest?