I'd give it a go then, and just see how it goes and how the flock reacts to her. Obviously if they all throw a fit you might need to extend this out longer, but 6 weeks alongside the others really should be plenty.
If it's safe predator-wise I'd leave the pop door open - if not, and you don't have an auto door, try to get out early to open the door, in case she needs to get out.
If it's safe predator-wise I'd leave the pop door open - if not, and you don't have an auto door, try to get out early to open the door, in case she needs to get out.