I looks like SQL Server 2017 SU5 is no longer available at https://download.microsoft.com/download/C/4/F/C4F908C9-98ED-4E5F-88D5-7D6A5004AEBD/SQLServer2017-KB4092643-x64.exe, so the SQL install script errors-out.
Great guide though, thanks a bunch for putting it together.
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