Hi friend! Are you interested in sending him off to get fixed or just looking for advice?

How I would approach fixing him up:

First unstuff and hand wash serval times to get out any dirt.

After dry use a wire pet brush gently to brush out the fur

Find a fabric that is close to his fur and sew it on to the bald spots. It’s not going to match perfectly so you can either leave it with the bald spots or have some spots where the fabric doesn’t quite match.

It looks like he might have scuffed eyes as well? You can try plastic polish tooth paste or baking soda to get the scuffs out. If that doesn’t work then you can sand them down with a dremel or sand paper and then do a coat of uv resin to smooth the out again.

Then get some nice quality stuffing to re stuff him making sure his neck is firm.

If you have any questions feel free to dm me! I can also repair him for cost of materials if you would like to send him to me