Welcome to the forum! Unfortunately, I don’t have any I would be willing to part from – they are pretty rare these days. If you have realistic price expectations I would suggest to keep an eye on EU eBay (Germany, France, …) for auctions (not the listed sales, they are, as you say, way overpriced), they pop up from time to time.
Not sure how important it is to you that they are OG GW stuff but in case you are not aware of them: Fabelzel’s sculpts are pretty close in style!