Commercegate payment gateway integration in Ikiclassifieds

I need to integrate the payment gateway [login to view URL] on my [login to view URL] software. I need to find someone who can do it at a GOOD PRICE and only in a few days. This is the first one of other projects and customizations, so if you complete this project successfully we will give you other projects immediately... we hope to create a long term relationship (if that's possible). *Please, NO Indian companies, because we've already have 2 bad experiences with them (no offense). We will accept indian companies only if they have worked with commercegate or ikiclassifieds. *Besides the price, we will give priority to developers who have already worked with Commercegate or Ikiclassifieds (or both). I attach the commercegate guide to let you know more details