4Game

So I've just bought a fleet carrier (yeh, I know they're annoying when 96 of them are clustered on one map, skegio o looks like a parking lot). Anyhoo, I'm planning to use this bad boy for my own private use at present simply to ferry my fleet about and do activities with all my ships in different parts of the bubble. I have two questions though which I can't seem to find the answer to.

1. Is there any reason I can't simply fill my carrier with commodities in the cheapest part of the galaxy and then sell them in bulk in the highest? I.e. Use the carrier as a massive trading vessel and ferry stuff back and forth with a T9?
2. Given I'm the only person who can use the facilities, is there any reason I shouldn't just suspend them each night to save on costs? (Or if I don't play for a few days).