Stallions for mare by Quality

I have lucked out on the opportunity to lease an 11 year old maiden. She is by Quality out of a Emilion mare. Winner at 3* eventing with an amateur and jumped up to the 1.40 classes.

Would love to shorten her back and maybe increase the bone without making her too heavy. The foal will need a good, amateur brain as well.
I would love to hear your suggestions!

Are you looking to breed an eventer or a jumper? What level is the goal with an amateur? Fresh only or is frozen an option? Are you looking for a stallion approved with any particular registry? How tall is she? Photos would be helpful to get a sense of her type. How much blood does she have?