Originally I was getting the ruby-wmi error. But since pulling in the windows 1.34.1 cookbook this is now gone and am only getting errors when trying to set the env['PATH']
When you bootstrap a node you can specify which version of Chef to install, e.g. "knife bootstrap HOSTNAME --bootstrap-version 11.12.8" or "knife ec2 server create --bootstrap-version 11.2.8"
Then you could use an older version of the Windows cookbok that still used ruby-wmi, together with an older version of chef that still used ruby-wmi, and wait for the path bug to be fixed and released.