Animator here. I'm not so fantastic with rigging the human body but I am pretty good at animating in general.
I've only been doing it for under two years but I'm confident somebody of my skill level will be able to help - and what's more, I'd LOVE to help. This story is super touching and I'd love to help a good person do a good thing.
Regardless, bless you mate.

Oh. This was posted months ago..