Ok here’s what I would do if I was you. I see that you have Bastila so I would get her zeta ASAP. Then I would farm her shards and the other Revan required toons (Jolee,mission, Zalbar,and T3m4. This is going to take some time to do but you will get a very good character that can immediately be your arena squad. The event to get Revan is pretty easy so no need to gear them above G10. When I got Revan I think my toons were G8-G10. The C3po event and the Chewbacca event are very difficult if you want them both to be 7*’s. One of the best first zetas are Raid Hans,Palpatine’s lead and since you got Padme you won’t go wrong with her 2 zetas. As far as ships go the Negotiator is by far the best but at your level I would go with Ackbar’s ship with some rebel fighters. I wish you luck buddy it’s a long journey believe me.