CS-Cart & Comgate Integration

I want a straightforward add-on that plugs my CS-Cart store into the Comgate payment gateway so customers can complete their orders with a credit or debit card right at checkout. The flow is strictly one-off purchases—no need for any recurring or subscription logic.

Here’s what I expect when the job is done:
• The Comgate card-payment option appears automatically at checkout and uses the official Comgate API.
• Successful, failed, or cancelled transactions instantly update the order status in CS-Cart.
• All sensitive data stays on Comgate’s side; my store should only receive the confirmation tokens.
• The code follows CS-Cart add-on standards and is ready for future version updates.
• Installation is as simple as uploading the add-on and entering API keys.
• You test everything in the Comgate sandbox and deliver a short setup & user guide.

If you have previous CS-Cart payment-module experience, let me know—that will help me pick quickly.