Can i ask one question:
First: Why not?
Second: BT/Ess are very easy to solo right out of the gate with some presence bonus, meaning free good gear (without the risk of ninja's or other random drops). Also a great way to gain serious affection for your comp.
Third: Soloing BT/Ess gives solid EXP for level 10-12 and the bonus is a nice chunk of the exp.
Fourth: Faction balance, empire can solo theirs so republic should be able to solo Esseles