Help Jose to buy a Horse Exercise Machine

This is Jose he is 5 years old and he was born premature at 24 weeks. He has CP and uses a wheelchair and a walker to move around. A few months ago he got SDR surgery and he needs a lot of therapy for his rehabilation. His doctor recomends Hippotherapy which is a physical, occupational, and speech therapy that utilizes the natural movement of a horse to provide motor and sensory input. It is based on the improvement of neurologic functions and sensory processes and is used for patients with physical and mental disorders.  And because having a horse is not easy a friend recomended a horse exercise machine that is not cheap. What this machine will do is mimic the movement of a horse. If someone would like to donate us the machine itself that would be amazing. His doctor recomends to start this treatment as soon as possible. Thank you.