Simple API to direct feed to Amazon MWS using my distributor API MWS

I have about 20 fields from my distributor that needs to integrate with Amazon MWS. So, I would need an XML file created and probably a Java or PHP to call that XML file. I need someone that has experience in doing this. I have included my distributor file which includes the fields. I don't want to use a flat file. I am assuming this is a simple project but if it's not let me know and i will adjust to accordingly? [login to view URL]