Sweet and friendly Tinker pony mare available as a companion horse

I am looking for a new home for my 18-year-old Irish Tinker mare, Lilly. She has a friendly, calm nature, is well-behaved when handled, and gets along well with other horses (low-ranking). She has no vices and is easy for the farrier and veterinarian. She is barefoot and stands at 137 cm at the withers.  

Lilly has equine asthma, diagnosed by the veterinarian as being in the upper respiratory tract, but it is manageable (no visible nasal discharge). She shows minimal symptoms from autumn to spring. During the summer, when it is hot and dry (dusty air), she finds it more difficult to breathe.  

Therefore, I would prefer a home for her in higher altitudes or in cooler, more humid areas with cleaner, lighter air, so she can enjoy life just as much in summer as she does in the cooler months. In such environments, she wouldn’t need medication. I could see her being suitable for equine-assisted education or therapy, as she is friendly with children.  

Last year, I mainly worked with her on the ground, doing groundwork and lunging, and we often went for walks in the countryside. She is very well-behaved in these situations. Recently, I also did some riding in the arena, but she was never intended as a riding horse for me, rather as a companion for my other mare.