So there is no container for you in sector F7 in Alaska? Edit: After reading Martinds post below, I realized that I misinterpret the post above... pls ignore my contribution!
Best advice is quite simple in my point of view: As long as in vanilla-campaign, do act as if no additional systems are added and never buy a bigger ship than a VHF / small freighter... Last point on ship-size is true for CF-campaign, too!