Arabian/Arabian x Thoroughbred Mares

[Aquila]

I'm looking for mares to boost the stamina of my endurance horses.

They must be max 10 years of age (because I can get more foals from them); I'll accept fillies of less than breeding age too.

Preferably high HGP (ideally 68,000 plus).

They must have any one of these gold stamina comments on their BR:

This mare could ride across the country and not be out of breath.
This mare looks like he/she could run for a month and not be worn out.
Is this a horse or a camel?
This mare has an extraordinary amount of endurance!
This mare can run a marathon and then some!
Wow, you'd be making a mistake not to compete in endurance events with this mare!

I would prefer pure Arabians, but I'll accept Arabian/Thoroughbred crosses , with more Arab than Thoroughbred (60% to 65% or more Arab), as well. They must be endurance-bred, or at least race-bred.

[Haydn #2]

This horse is currently being bred if you want to look at the sire to see if you want this horse when it is born if its a girl the filly would be for sale https://www.horseworldonline.net/horse/profile/4749458

[Aquila]

This horse is currently being bred if you want to look at the sire to see if you want this horse when it is born if its a girl the filly would be for sale https://www.horseworldonline.net/horse/profile/4749458

I'll need to see the foal when it's been born (if it's a filly); neither the sire's nor the dam's Breeder's Report comments on stamina are quite as high as I would like, unfortunately. I'll certainly have a look at the foal when it's born though!

[Haydn #2]

Here is a filly https://www.horseworldonline.net/horse/profile/4778406

[Haydn]

and here is another option of a filly