Suggestion: Unlock all persistent items
I think all the persistent items should be unlocked for use without having to spend favor points on them. Some of them might need to be tweaked slightly. Anyways here's why they should be unlocked:
1. This game is not designed around persistent traits. It does not benefit from having persistent mechanics of any sort. I actually tend to think persistent mechanics are just bad full stop. Your performance should be based on your skill at the game, not who has logged more total hours of gaming time(while this is reflected in your skill, it is obviously not the sole basis of it). People should not have an advantage from the start of the round. They should gain the advantage on the basis of their performance.
2. Favor points are bugged so these items are really hard to get right now.
3. Once the items are unlocked, you can integrate them into your builds and get a higher level of diversity. Even if the issues are fixed, it'll take a long time to get them so your options are limited significantly.