Just for fun I went onto swgoh.gg and calculated what the highest fleet power one could have is and the team that it would entail:
55971 Phantom II
53526 Tie Reaper
53526 gauntlet starfighter
49949 Slave 1
Chimaera and Executrix are tied for the highest power in a capital ship. The other ships all have the highest power amongst non-capital ships. As we can see the highest attainable fleet power is 551,669.
Looks like I have a ways to go yet...