I don't see it available on Steam.
Sorry, official release from the positech website. If it's like the nomads expansion it probably won't hit Steam for another month or two at the earliest. Looks like I'll have to wait
Then change the following to any desired value
[config]race = allianceturn = 109cash = 1237084crew = 184030pilots = 62092maintenance = 2216
Hope this helps