Do I go for JTR or do I round out other squads first?

Looking at what you need for jtr it is almost exclusively cantina farming. Both kylos are cantina. Fotp would be my choice for the last fo and he's a cantina node but also in fleet store from time to time. Both vets are cantina. Finn is either cantina, hard, or guild store. This is both good and bad since it'll take longer since you have a huge bottleneck but also good since you can farm cantina toons and focus on non jtr toons without losing much if any progress.