First I am going to ask what you want to use the horse for? Are you going to train to learn western pleasure showmanship or are you just wanting a horse to trail ride. We also don't know what part of the country you live in and horse prices are higher/lower in certain areas as opposed to others. These couple things may help us answer in regard to the price.
Also a confirmation critique really needs to have the horse square and no saddle on. There are many defects sellers can cover just by saddling up the horse.
Pedigree is a good reference, but that's all it is, I think one of the best ways to sum it up is Secretariat was a great race horse, he put a lot of foals on the ground, but none have sadly met his reputation.
In this case a video would help to see the movement.
A woman can NEVER have too many horses.....