How far to take phoenix?

I wouldn't, since you have thrawn 7*. It really just matters if you want to do rebels for ships. Ezra is a...decent jedi for a last jedi on a team but I've never been much of a fan of him. #1 thing to do is focus, so since you got the hyperdrive you don't want to just start working on a bunch of different things

I'm not sure what's in hyperdirve tbh, but seps are still great for ships and getting padme, fwiw