MUC-AKL, where to credit flights?

(Mods, apologies if this post is inappropriate, please move/delete if so)

I have a trip to NZ coming up, which I would (under the old system) have credited to BAEC to get my silver status. Now, with all the ongoing changes, I am deeply confused about where I should credit the flights for the best result, can someone advise please?

My main goal is to achieve (preferably with this one trip) Oneworld Sapphire - I like to maintain mid-tier status with all the major alliances. Avios earning rate is much less important to me. Currently a lowly Bronze with BA, but happy to credit to any OW programme for status.

Trip details:
QR MUC-DOH (business lite)
QR DOH-AKL (business lite)
CX AKL-HKG (J)
QR HKG-DOH (J)
QR DOH-MUC (J)

(All happening late April - late May)

Thank you for any help anyone might be able to give. I have tried to work it out for myself, but my head is about to explode, and figured with all the expertise on here, someone have some experience of this…