Need Programmer Expert for Integration to anything

Hi, I'm looking for E-commerce expert, which can handle OsCommerce, Magento, Zencart, X-Cart, etc. I mean understand the concept of shopping cart site. Please let me know the price for each integration for this kind of site, I would like to hire for long-term. Give me fix price for this. For CMS, please let me know the price for integration to Joomla template, Drupal, and Wordpress. Or maybe another scripts, like CLipshare. Please give me the fix price, as it long term. Creating Component or CMS would be Plus. Asian Country is preferred, only freelancer and not company. Need to Understand AJAX, PHP/MySQL, JS. Serious Programmer Only.