Thats actually enough. Perhaps people don't realize that:
a) Kurile buys VIP for 10k each, they are sold at cambridge rather cheap
b) Luxury liner Hawaii buys the lux food at high prices. You can fill your cargo full of it at Cambridge for less than 1k
c) Pharma and food rations are much required at omegas and omicron corsair bases. Corsair pirates will not harm you and might even offer you escort to their bases where you can sell the pharma. Profit is reduced, but good roleplay, good relations and safe profit is ensured.
d) Cambridge needs those engine components and you can haul them trough omegas for great profit
e) All those routes from omegas and omicrons ending back to cambridge have one thing in common - alien organisms. They are cheep and they sell great. And cambridge res station is right next to the planet.
f) there are even better routes, or even longer routes that actually pay off, and don't forget - artifacts are cheapest at omegas and crete - and corsairs don't tax artifact smugglers.