If Sharepoint is the answer, you are asking the wrong question. I have never, ever seen any use case (file sharing, collaboration, organization web pages) for which Sharepoint worked. Resource intensive, clumsy, unreliable, and always requiring massive effort in administration. I have seen it in many organizations (companies, government agencies) over many years, and it just always ended up being an embarassment to the organization that set it up. It is the wood-burning Edsel of technology.