Mongoose Traveller or Cepheus Engine

I was thinking about using playing some Traveller again some day soon. I have started playing that with Mongoose Traveller 1st edition, but I never switched to 2nd edition because 1st seemed to be doing just fine.
I found MgT to be the perfect mix of playability and hackability for that kind of game, although I wouldn't use it for every RPG possible.
Lately I encountered Cepheus Engine though, which is basically just MgT 1st edition with the serial numbers filed off, for the most part.
It seems there were some license contentions when MgT 2nd ed. came out and people reacted by just cloning their own system that was slightly closer to 1st by using the SRD released for that one.
It's a serviceable system from what I can see, but it of course doesn't have the usual product identity things that were not released in the original SRD.
Namely it doesn't have more than generic descriptions of the ships involved (and well, no art), and it doesn't have the career events tables from MgT, of which the MgT system only released the scout as a reference.
Instead it has perfectly serviceable career tables that are equivalent to a lot of those, but without the additional events tables.
Which is a pity because those were one of the best things about MgT. Thew way how the system helped one create an actual character was fantastic. Unlike other systems Classic Traveller was famous for being a game in which you could die in Character generation on a failed Survival roll (a feature Cepheus Engine tries to emulate), MgT had this changed to eject the character from the career and maybe settle them with injuries. Not quite as survivable as people often claim, as I had multiple characters die during character generation when multiple failed Survival rolls killed them anyway.
In any case the main reason I am looking at both of them is that I would love to make my own document of rules for the game I plan on running. But while both have similar options I am not sure if it is not just a lot of wasted effort, when instead I could just make a shorter houserule document.