auto responder replier for gumtree website

I need a functioning gumtree auto replier script. I would like to be able to select a category from a specific city and respond to all posts uploaded that day and also if possible to reply to only posts that contain certain words. Details: 1. Must be multithreaded - up to 100+ 2. Must be able to handle proxies and rotate proxies accordingly 3. Must be able to rotate user agents 4. Must be able to select any category in any city that I want 5. Must implement [login to view URL] support. If you have an alternative captcha solution that will be another plus. 6. Must be able to rotate "from" address. 7. Must be able to set delays. 8. Must be programable 8. Finally, all I ask is that it WORKS. It will be rigorously tested in all sites. please write "gumtree" in you bid message that way I know you read the scope and are not a generic bot Look forward to hearing from everyone