As your project required a milestone compulsory that's i am creating a milestone.
I am a Programmer having 7 years experience in PHP, Mysql, Javascript, Oscommerce, zen cart, Open cart, Ajax, Jquery, Wordpress, joomla, codeIgniter, Cake, Drupal, HTML, CSS.
Sir, I have already lots of oscommerce projects as you see my reviews. I can also create this module according to your requirements. Ready to start now. Please message me if you have any question.
Thank you,
Rehan