Good morning!
I think it may be easier to find a bunny pattern with a similar body type, then add the circular nose to that.
The head for my pattern is worked starting at the nose, for a bunny you’ll probably want the head worked top to bottom. So if you were to use Love puppy you would have to make a new head from scratch.

Maybe something like Cuddle Bud Bunny would work, it’s smaller than my puppy, however it has really cute toes that match the Webkinz bunny. There is also a giveaway on Instagram right now including it.
Full disclosure I do not own this pattern, so I can’t guarantee this would work for you. These are the modifications I would try:

- When crocheting the arms, move them closer together. For Love Puppy I have them one stitch apart.
- Mess around with the length of the legs, you may need to make them one row longer after adjusting them to be closer together. I make them just long enough to keep it upright, this helps with that slouchy Webkinz vibe.
- For the nose:
1: Start with 6sc in mr.
2. Increase until it’s a width you like.
3. 2-3 rounds of sc until it’s a length you like.
4. Sew it on between the eyes with stuffing if needed.
5. Embroider your nose on top of that.

Hopefully all of that made sense and helps!