I would ask for casual shots of the dogs just on the ground free stacking with no lead etc. and no topknot so you can see natural earset.
I have noticed one thing about some of the dogs I have imported is like the pics here they have their tongues out. This really hurts in the show ring. I have experienced that myself.
Also ask for a video clip of them moving.
If you do a tail docking it is a full surgical proceedure at this age and you will have to find a vet that can leave as much hair on that tail as possible to put her in the ring ASAP. I had one docked and had her in the ring in 3 1/2 weeks. So it is not impossible to do.
Do you have your male already that you will be using to breed her with or will you be going out for stud?
It will take two nice dogs to give you something nice for show hopefuls as I am sure you know.

Good luck on your decision.
Deana