How much should I ask for my horse?

Ok this is my horse Breezy. She is an American Saddlebred. She is Chestnut with a crooked blaze, 2 white socks on the left side and a coronet on the back right. She was a rescue. She was skin and bones with no name or history. She was a body score of 2 when I got her. She was given to me with the info of she can be ridden but wasn't by the guy who gave her to me and she was good with other horses. While getting her back to health I have figured out she is a really good mare. I named her Breezy because she was a breeze to work with. Once she got back to enough weight I decided to ride her. She saddles, and takes the bit with no problem. Stands for mounting. Rides both english and western. No buck, bite, or kick. She clips and bathes. Good with dogs, cats, chickens, atvs, traffic, and kids. You can catch her easily. Nickers at you when you walk out the door. I can climb through all of her legs and she loves to be loved on and brushed. Picks up all 4 feet. She can be eating grass and you start brushing her and she will stop eating, level her head and just stand there until you are done. I can't say enough good things about this mare. I believe she has been a show horse in her past. When you get on she starts trotting as they would in saddle seat. I don't want to try to train something else and untrain what she has been bred/ trained for. She is just not my breed. I like Quarter Horses and can't seem to get away from them to own a different breed. Her age is 16-20. Please be nice