Convert Excel Based Application to c#.NET

We have an Escel based CRM that we have added to over the years, and finally decided to move this to .NET. i have been working on this over the past while, and completed some of it, class files are complete and the forms are drawn in Visual Studio(Windows Forms project). Now i am running out of time, and need it finished. I am not an expert in c# by any means, so you will probably find many mistakes. We used Access as a back end, but are moving to use mysql. I have budgeted $1000 as the maximum I can spend.