Take note that the setup you listed is only possible at 18th level at the earliest; it would look quite different before then, and especially from levels 1 to 10 where you would be restricted to 2 spells per level from the primal and arcane lists.
Given that you said you were starting a campaign, I would focus on these spells. Note that there will be many more spells to choose from by the time you reach 10th level (the Advanced Player's Guide coming out this summer will have a bunch, and presumably there will be a few more in the other products planned for this year).
My recommendation would be to plan out your *feats* first, then the halcyon spells that go with them, as so:
2: Magaambyan Attendant Dedication
- 1 cantrip (arcane or primal)
6: Halcyon Speaker Dedication
- 2 common cantrips (arcane or primal)
- 2 common first-level spells (arcane or primal)
10: Halcyon Speaker Initiate
- 2 common second-level spells (arcane or primal)
- 2 common third-level spells (arcane or primal)
Etc.
Finally, because you'll be playing a wizard, I wouldn't discount taking arcane spells with your halcyon slots since they can be used spontaneously, ensuring you always have access to them -- you never know when you might need that emergency feather fall, or a true strike to hit that hidden sniper!