Need Shopify "Hosted Payment SDK" integration

I want you integrate Shopify's "Hosted Payment SDK" to a site (to a payment gateway). - You must have experience working with "Hosted Payment SDK". More about the project- ==================== We have a shopify site and we want to integrate a payment gateway with it. The payment gateway we want to integrate is not listed in shopify, so, the project is to integrate that payment processor to the shopify site. Researching I found that the payment gateway can be integrated with the shopify site by “Hosted Payment Gateway” method. This links shows how it works - [login to view URL] Here are few helpful links – - API manual is here - [login to view URL] - For best API and tech support click the forum - [login to view URL] - Link to third party libraries (PHP included) that interact with shopify API is [login to view URL] - A link for github doc for payment gateway integration is ([login to view URL]). The link shows process step by step how to integrate. We just need to be able to show shopify that it is working successfully. Our payment gateway is SnapScan and the API docs are located here: [login to view URL]