On Howrse, how much shall I sell my Arabian unicorn for?

I am selling an Arabian unicorn mare on the game Howrse. She is about 30 years old, has had unicorn foals, has full training, full BLUP and 937 skills. She also has Hephaestus Shoes, Philosophers Stone, Eolus' Wind, Morpheus' Arms, Atalante's Saddle, Athena's Bridle, Chronos' Timer, Philotes' Stroke, Nyx's Star and Diamond Apple. I have been asked how many equus I would sell her for with 2 passes and maybe BMIs. Have you an opinion? (My username on Howrse is destiny6 and the horse's name is Majik.)