real time chat rooom like badoo or facebook ser databding ver control with friends list -- 2

What I need is a real time chat system either jquery and bootstrap based that is easy to install inot asp.net webforms ideally as a server control with databinding and events. I have seen all the chat scripts out their so please dont try and fob me off with scripts thats aint urs. Features I need Friends List PM user when person is offf line Two Message Limit if person does not respond Block Feature once blocked the user cannot be contact or see profile pic. Pref Techs ASP.NET WEBFORMS, SingalIR , SQL SEVER and Entity Framework The solution should be a asp.net server control that I can add into a project easy setting properties not to use any third party services what so ever ! Except jquery and bootstrap cdns. This is a small project and only merirts £20 uk pounds and wont be asked to increased budget if you dont have an exisitng script i dont want to be waiting months for it to be completed. Budget wont be increased i not here to pay your rent !