I am going this route. HDB makes a huge, huge, huge difference. Speeds up this by months. With HDB I went Geos and geo ships, then Jedi to get Yoda and now working on Padme.
One bottleneck is Galactic War tokens. You need these for Poggle and Geo ships so there isn't any left for any other farms. I would drop Luminara from Jedi team and put in Qui Jon as you can use cantina to get him. Otherwise you will not get poggle or Geo ships. But then you are splitting Catina tokens between two toons. Maybe do Kaanan from arena? Get Nute Gunray up to 5* then switch to Kannan. Nute will be geo lead until getting GBA unlocked, so don't need Nute 7*.
