for the future of the KzAF, pak-fa or j-31

hello
new person here
i’m not so knowledgable on military aviation, but follow it as a hobby.

a relative of mines is a mid level officer in the Kazakhstan air force and some of the new documents cite a need for a new fighter after 2025.
according to my relative, what is being looked at is the Russian Pak-fa and the J-31, because J-20 isn’t available for export.

the goal is to replace the mig-29 and mig-31.

what do you guys think would be good. both technical aspects and political aspects are important

some benefits of Russian:
we have very good relations with Russia
most of the time, we receive domestic prices for Russian weapons
most of our weapons are Russian
easier interoperability with Russian allies

some benefits of J-31:
KZ military still seeks to diversify
cheaper
Pak-fa has some issues with the Indian side