Getting colonists to come to Ares (without an acquisition check) will require going to a Hive World and finding a hereditary captain willing to do a passenger route to Ares, then either emptying the prisons or hiring zeppelins to spam "Come to the off-world colonies!" billboards.  You can advertise for free by making a Trade (Remembrancer) check, a deceive check, and a charm check to make a vidshow documentary about how awesome life is on Ares and promote it.  8 net successes would be needed between the 3 checks.  If you want to buy Trade (Remembrancer) as an elite advance, it costs 300xp for Baromir.<br/><br/>As for buying the services of Kroot, I'd say that they're a scarce commodity for a Kroot, but you won't really count as a leader until you're not paying them anymore, which will require hiring a Warsphere (near unique for 1 campaign) and then distinguishing yourself in front of the other Kroot.  Bloodtracker can stack between PCs, but not between NPCs.