Simple Invoicing

I need a simple coded ASP.Net C# MVC application that I can easily understand that will create an invoice. The transaction number must be auto generated. This number will come from a sequence table. Header Detail transaction. There must be a Customer selected by a modal form where in they I can find a specific customer by name. Tables Needed: SalesHeader SalesDetail customers Sequence Database must be SQL Server 2008 When you will give me the code give time to me to discuss about the code. I need this done in few hours only. upon awarding.