Add payment gateway to existing .net C# module.

I have an existing module that was developed in Visual Studio C#. It is an invoice module that runs on a dotnetnuke platform. I need for someone to add an additional gateway for the merchant account provider firstach. There are currently 4 gateways already created, so you can use them as a guide. You would need to create a screen (see link below) for how I would want it to look and feel. I have attached the technical requirements required by the merchant account provider. I have also attached the framework of the code to be used. The pages to develop are fspayment and fsadmin. I have some development experience and should be able to get you setup fairly quickly. It's pretty clear what they are doing here. I am looking for someone who has written gateway code before and is comfortable with .net c#. Ideally having worked with dotnetnuke modules before although I can provide the necessary .dll. I would provide a test account to work with. Example ach demo. (asp code can be found here, would need to convert to .net) <[login to view URL]> ## Deliverables The code that would need to be modified along with the api specs are in the zip folder