Creation of Magento payment module for Credomatic

I need a payment module made for Magento for the Credomatic system. I have all the documentation on the system to integrate. This module needs to be zipped and installable for any Magento v1.7.0.2 from the install option. Attached is the PDF documenation of the payment system and a sample PHP file of what variables the Credomatic system require and where they come from.