Yes I have a plan.
And here's also a bit of advice:
Before you go willing out any of your horses, be sure to discuss this with the people you will be gifting them to in advance. They may not want them!
I was willed more than one horse and one especially broke my heart.
One of them belonged to a very dear friend of mine who had brain cancer. She willed me her very old quarter horse who had tons of problems, more than you could count. We had discussed putting her down on several occasions in the past but she was in denial and very optomistic and convinced this horse would last another ten years and be fine if she kept up on her regimine of one thousand supplements a day. What I saw however was a very old worn out tired crippled horse in chronic pain who would never rally who was costing a fortune in meds and supplements, loads of feed, frequent vet visitations, and practially round the clock care. When my friend passed, the horse showed up at my barn with everything she owned including her one thousand supplements. Of course I knew in my friend's eyes this was an "honor" for me to be bestowed with her wonderful mare, but it was also a huge hardship on me. I did do right by this mare and follwed the regimine for quite some time regardless, and eventually she passed by herself to be with my friend in heaven.