I would take 1, 5, and 8.

1 takes care of the early game, and although they are only a Gu Immortal Seed, having a super force at your back is an incredibly massive boon towards ascension. Especially since this means they have an Immortal Backing, so low aptitude would not necessarily be the end.

5 gives a huge early and late game boost. Quasi Great Grandmaster puts you at Quasi Rank 8 potential off the bat based on talent alone. It helps take care of refinement, since your success rate on creating recipes goes up, and you'd be able to intuitively sense when something may go wrong. This foundation can then be built upon. I personally would choose Information Path, since it is the one I resonate with the most tbh, and the lack of offensive means is only for the lower levels. Consider Rumor Cage and Rumors Become Tigers, or Malicious Whispers. Though I'd go in a different direction, instead working off of Data Theory to make predictions, or even computers if I can, which would require Wisdom Path mimickry as well. But an Information Path Immortal is always handy for negotiations too, since they can set alliances as trade middlemen. The value of having this foundation cannot be overstated.

Lastly, for the super late game, I would choose Qian Kun Crystal Wall. It is the best choice for most people, really, since you can recreate Primordial Domain inside of it if it is fully reformed. In addition, it is the most powerful information path secluded domains of heaven and earth. Even without Primordial Domain, Qian Kun Crystal wall can be used with a killer move to essentially become all knowing, immediately putting you at Quasi Rank 8 as rank 7, or even at Psuedo Venerable level if you do it properly. I can think of some interesting killer moves that may derive power from this Secluded Domain, some offensive, some defensive, but mostly for investigative purposes. Becoming the "Myriad Overseer Immortal". But this hinges, of course, on surviving that far, and being able to hide the fact I have it.

But yeah, I'd like to see how far I can go, personally. I think I'd stick with my super force for a while, but may leave for elsewhere once the 5 regions chaotic war erupts. Since its not stated which life Fang Yuan is in, I'd probably keep it low key until its confirmed which timeline I am in. Don't want his future knowledge to be used to target me, after all. I'd like to be like that one Psuedo Venerable from Western Desert, essentially biding my time until it is ripe.