Install SSL on IIS

I need help completing the last step of securing a Windows Server that hosts a single website on IIS. The certificate authority has already issued a single-domain SSL and I have all related files (.crt/.cer, private key, and intermediate chain) ready to provide... (Budget: $10 - $30 USD, Jobs: IIS, Network Security, SSL, System Admin, System Administration, Web Hosting, Web Security, Windows Server)