Need a expired domain scraper script - previous experience required.

Many expired domain scraper programs or scripts have been built on freelancer. I am looking for someone who has already built one, so i dont have to start from scratch. You need to prove you have built one, show its functionality and we can both modify if need be from there. I am wanting to find old expired domains for the purpose of re-purposing these sites and using them for link building to my niche money websites. I use a program called Xenu but it takes forever. I would like a crawler built that would do this automatically. I would like the ability of the crawler to incorporate SEOMoz api, majestic seo api, Pr checking, spam anchor text checking and some other features. This is why i need someone who has done this before.