Bundle of Holding currently has a Cepheus Engine bundle.
Since it's 2d6 base the settings, vehicles and adventures should be CT compatible.
For 9$ you get the Core rules, a Vehicle Design Guide, a Bounty Hunter's handbook and "Scout Base 947" which is a sort of home base for your crew, detailing the subsector system and world where it's located, and three adventure set there. This IMHO is the best deal.
for $21 you also get 10 different ships, "Class E starports" which is another frontier setting with only 4 inhabited worlds. This tier two bundle doesn't really do it for me, but maybe it'll be your thing.
Moon Toad Cepheus Bundle
Adventurer! This all-new Moon Toad Cepheus Bundle presents Cepheus Engine tabletop science fiction roleplaying ebooks from Moon Toad Publishing. Cepheus adapts the rules from Mongoose Publishing's Traveller First Edition (2008), released under the Open Game License, to help you create an...
bundleofholding.com
For 9$ you get the Core rules, a Vehicle Design Guide, a Bounty Hunter's handbook and "Scout Base 947" which is a sort of home base for your crew, detailing the subsector system and world where it's located, and three adventure set there. This IMHO is the best deal.
for $21 you also get 10 different ships, "Class E starports" which is another frontier setting with only 4 inhabited worlds. This tier two bundle doesn't really do it for me, but maybe it'll be your thing.