Interested in peoples opinions

How much would you pay for a 7 year old 15.2 (ish?) section d cross cob mare.

Bay with front white stockings, super pretty face

A weight carrier, stocky

Hacks 3-4 times a week in roads, alone or in company

Green in school, as in she’s not the fondest and can be lazy (strides out on a hack, just thinks it’s dull or unsure of the job I guess)

Not for a total novice/beginner as will startle but easily sat to (just a ‘surprised’ startle, stop, carry on kind of spook, doesn’t go anywhere. I had worse in a riding school)

Popped small jumps in grass arena and out on hacks

She will look after you in the school, (if you can’t get her going because you aren’t balanced or unsure, she won’t move, even startled she’ll look after you)

No idea what she’d be worth, or if I’ll even part with her, hence asking opinions

Thanks