Well you learn something new everyday...I did not know this.Every single engineering blueprint in Colonia started out at G1 and has been dragged up to G5 over the last couple of years through effort roughly equivalent to a CG.
The engineers that Colonia has working for it are people the superpowers could have had working for them, if they hadn't been so quick to write them off as dissidents and criminals.
As for Kansas, while Colonia does maintain sufficient hydroponics capability to ensure its food security, the major areas of economic specialisation are in high-tech manufacturing [1], services and tourism - all highly profitable sectors in the short term for obtaining cash from the bubble, and for developing the region's long-term economic independence.
[1] For example, Colonia as a region currently sells 54,000t of HE Suits - a basic high-tech good required for safe manufacturing and extraction operations by workers galaxy-wide. The bubble as a whole only has 13,000,000t to sell - one in every 240 HE Suits is produced in Colonia.
Fortunately the SCB and maybe Life support engineering are the only Colonia exclusives I would have any use for. It seems fair that Colonia residents have something exclusive to show for all of that effort.