Imho it depends on you and you time. There is nothing you cannot get in a reasonable time.
You don't need any highend gear for the quest, only your own Railjack.
You can either do the quest Rising tide, where you build your own, but that will take you some time. (6 missions with 6 x 1-hour builds of each part of the ship.)
If you want to skip that quest and do the Call of the Tempestarii right away then the pack is for you.
If you would rather build your own railjack and save money, you can do that too.
Up to you. I hope this is helpful.