Duck wheel “chair” pattern needed

[Tcsunflower]

I'm so sorry, I hope she gets to doing better. I know some people with animals in wheelchairs and most of them use this kind
https://www.handicappedpets.com/walkin-wheels-duck-wheelchair/

Thank you!They don’t sell chairs for ducks or custom make them anymore. Looking at the chair in the pic, gives me ideas on how to make one