I started trading with gallian commodities and i noticed one balance setback.
Almost all Gallian stuff is demanded on ALL sirius bases and vice versa. Only balance which is taken into acount (and that was done good) is distance.
But fact is that whatever you carry to whereever you will have selling spot , whenever you would like to dispose of some stuff.
That sounds fine in first place , but why the heck for instance Blue jillies flower petal is demanded in Gallia on every place. I studied gallic commodity game lore and i figured that those can be divided in several different categories.
By that logic some selling points would buy only some types of commodities for instance processing and mining facilities should buy some metals but not for instance energy field equipment or so .
I think that those selling points have to be more scarce and RP logically oriented.
However as i calculated according to your setup, biggest distance in Sirius (and biggest profit) is between Maine system Gallia and Koeln system in Rheinland, which is i suppose measuring tool for all other distances.
This is lucky fact , cause i propose that Heisenberg research center in Koeln as freelancer base in its lore should accept ALL gallic stuff on biggest prices for all whatever-i-trade-just-to-make-cash types of traders , and others spaceport in Sirius redesign to accept gallic different stuff on scarcer level and related to commodity lore and RP logic.
Lets better utilize for RP those wonderfull and diverse items Gallia offers instead beign balanced economy of anything for anything.