I need someone to add car listings to my website from another website

Ok so I need someone to go to this website gumtree (dot) com and go to categories and select Cars Vans & Motorbikes and in the Location Box you must type Belfast you should get around 27000 listings. Only cars are important NOT parts or accessories JUST cars, and I need these cars added to nicarseller (dot) com you do not need to sign up on nicarseller you can just hit the Publish Your Ad (orange button) select your category as car, and not all car information is relevant only the main information. My main query is how many can you get done in an hour and how much is it going to cost me. Best Regards,