Dear Sir.
I have many experience in developing eBay and Amazon inventory with PHP , Jquery , MYSQL and #C .
i already developed the similar project with your project.
I also perform many other tasks with #C.
I developed additem, reviseItem and relistItem programs with #C and php.
also i developed muti-picture uploading program with #C in bulk mode.
I can give a sufficient answer to your question and test tasks.
I can enough satisfy your requirements.
Please contact me. thanks.