It’s going to be hard to find a person with old metal sculpts - luckily for you there is a guy called Fabelzel on Thingiverse that makes free OG Chaos dwarfs files ready to download and print - he made the same 3 poses you are looking for
Oh and don’t worry if you don’t have a 3d printer, there are a lot of online shops that specialize in 3d printing on order so it’s just like buying models from a store I’m sure you find people that will explain it to you in more details - or just ask me if you interested