I need some help...

Hey guys, I've been looking for the Dominus Ghaul set recently and haven't been able to find a single one. Not even on ebay. I want to know if you guys have any advice on finding one because I am DESPARATE to find the parade warlock figure. I saw one for a supposedly good price of $25 on Shatterbox discounts but the site seems really dodgy and I don't feel comfortable buying anything there. Please inform me if you know that site is safe. Also let me know if you have one (with warlock) for sale! I am willing to pay quite a bit (But not over $70)

Thanks!