Code a Custom Wordpress Plugin - Have mockups/Details ready

Hi, I need a custom wordpress plugin to be coded that does a bunch of SEO stuff. The plugin needs to work on mass posts automatically. Another core function required would be finding and posting blog comments automatically. PLEASE DO NOT BID IF YOU CAN NOT COMPLETE IT If you have prior experience in developing wordpress PLUGINS, please BID. All the details, including complete explanation will be provided once the winner is chosen. I would want it completed in 10-12 days or earlier. Regards Abhi