I had to go back and install 1004 tonight and for some reason the server failed to look up debian.slimdevices.com; not really sure if its a local error on my part, but I had to do the following for the script to run and finish successfully
add line 672 to mce-install.sh
echo "54.208.89.159 debian.slimdevices.com" >> /etc/hosts
I also added
54.208.89.159 debian.slimdevices.com
to /etc/hosts before running the script.