Nominet EPP client

I am a Nominet registrar and want to add domain search and registration capabilities to my existing website. I therefore need a Nominet EPP server app created that can do crud operations using Nominet EPP system. Details of the EPP spec can be found here: [login to view URL] I need the following: 1. Create an EPP client based on Extensible Provisioning Protocol using defined XML schemas using a language such as Javascript, PHP etc. 2. EPP client must be able to interface with Nominet tto register new domains using my registrar details 3. EPP client must be integrated into a Shopify site e.g. though client side scripting, form etc. We use Shogun so a custom element in Shogun could potentially be used 4. EPP client must be able to handle all error checking. The second part of this project is to integrate the EPP into my Shopify site. We use Shopify and have Shogun. We need the following: - Integrate domain name search bar into a Shopify / Shogun page - Ability for users to add domain name to basket - Ability for users to checkout and pay for domain name - EPP app will then register domain with Nominet once it is paid for