These are very hard to find, but do show up on e-bay on occasion.
I have the crouching devil. As a matter of fact, the photo of the devil in your post is actually mine posed in my living room when we did a side show freak scene for our party. Unfortunately, I do not plan on selling this prop in the near future, as he has a permanent home with me for now.
I hope you can find one at a reasonable price. They are well made and detailed nicely. They are heavy, and bulky, so shipping will be a bit pricey too.