I think I would want to be able to take her to the vet & have her checked - I would want to know she didn't have any major issues to deal with down the road.
I want a 3rd & a 4th so much
- but I had to decide for myself that I enjoyed how easy it is to travel - including flying with just 2.
The other thing is, do you feel like you can bond with her and accept her like the 2 you picked out and brought into your home?