The telerik controls are basically the paid control they are charged on Per Developer basics,and you can use nugets to download all the telerik files to your project.
NuGet is a Visual Studio extension that makes it easy to add, remove, and update libraries and tools in Visual Studio projects that use the .NET Framework. for more information on nugets visit the below site
http://nuget.codeplex.com/wikipage?title=Getting%20Started[
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And if you need any further information on Telerik controls please visit the below link
http://www.telerik.com/purchase/faqs/aspnet-mvc.aspx[
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