I'm usually around that systems (currently 3 or 4 Systems away and doing Pirate-Missions to get the last 26% to Combat-Elite).
I changed my Home-System from Delkar to Wu Guinagi two Months ago, while ranking up to King
From Wu Guinagi - Ziegel Dock - you can also do very good other Passenger-Missions.
Transport-Mission are payed very well. Sometimes you'll get 15MCr for one ~100LY Mission.
Best will be to get allied with all Parties to get the good Missions.
Or maybe i should say you could do with 2.1, because i dunno if you can grab those missions after 2.2 also...