Thanks for reaching out here on the community.
Were you able to deploy the image in the end? If you could share the solution with us here, you might just help somebody with a similar issue.
You can get the assistance of our support team by opening a ticket here
Thanks again for investing your time in LANDESK.
Here is the path for your default unattend:
If you are on an older version or upgraded from an older version it will be under C:\Program Files (x86)