Casually seeking horses for breeding.

Hi!

I am fairly new to EV, but already hooked. I recently hit level 6, and therefor can start breeding. However, I see a lot of people talk about waiting to breed until horses are ~15 years old. I only have one horse near that age range, so I am casually seeking horses of the following breeds near that age range: Trakehner, Quarter Horse, Thoroughbreds. I am not looking to break the bank.

Thank you!