Looking for pony mares!!

I am looking for young, pretty, good-tempered pony mares to breed to my stallion. They dont have to be broke to ride. Any healthy, halter-trained pony mares under the age of 13 years will do! I would like to not pay more than problably $800, but let me know. Located in stella MO. You can reach me at this number 417-346-9641 thanks!