Hello, dear !
You've met the right developer for designing ASP.NET web sites! :)
I've been dealing with that matter throughout the past 5 years and am fully qualified for the job (see my resume and the MCP certification), so I'll be happy to design yours.
Let me go a little further and describe the process as I see it.
In case you don't have a project management system at your disposal, I'll open up an account for you into mine servers and setup a TEAM PROJECT in TFS (don't be intimidated if you're not familiar with these - it's simple and easy to use). Afterwards we can begin describing your application needs, step by step and I can start transforming these descriptions into development tasks, and ultimately to 100% working, bugfree, quality software, using the latest .NET technologies - MVC, Entity Framework, ASP.NET Identity, SignalR etc.
So don't hesitate to contact me! I'm looking forward to discuss the details and get started designing you web site!