For one thing, you need to say what you need help with in your title.
Secondly, you need to be PATIENT. It takes time to get a question answered, it won't hurt to wait.
Now, concerning your question, you cannot put the canine tail onto the feline model, or feline tails onto canine models very easily. It wont work and it will look horrible, seeing as they were made for either feline or canines, not both. If you want a specific tail, you will have to find a mesh maker, such as Tigg, who knows how to do them, and commision them.
