A few ideas ( I can't sleep and few ideas popped up)

#!/bin/sh
# Used for adding LCNC to Linux Mint 18.3 for respin
# Run from same directory linux kernel & lcnc debs are in
#
echo "Adding required repos"
sudo add-apt-repository 'deb http://mirrors.kernel.org/ubuntu precise main universe'
sudo apt-key adv --keyserver hkp://keys.gnupg.net --recv-key 3cb9fd148f374fef
sudo add-apt-repository "deb http://linuxcnc.org/ precise base"
sudo apt-get update

echo "Removing ndiswrapper"
apt remove --purge ndiswrapper*


echo "Installing Linux Kerenl packages"
apt install ./linux-headers-4.11.12-rt16_4.11.12-rt16-2_amd64.deb
apt install ./linux-firmware-image-4.11.12-rt16_4.11.12-rt16-2_amd64.deb
apt install ./linux-image-4.11.12-rt16_4.11.12-rt16-2_amd64.deb

echo "Installing Linuxcnc packages"
apt install ./linuxcnc-uspace_2.7.14_amd64.deb
apt install ./linuxcnc-doc-en_2.7.14_all.deb
apt install ./linuxcnc-doc-fr_2.7.14_all.deb
apt install ./linuxcnc-uspace-dev_2.7.14_amd64.deb
sudo apt-get install hostmot2-firmware-all mesaflash

echo "Installing glade3-3.8.6"
apt install ./glade3_3.8.6-1_amd64.deb

echo "Installing devhelp"
apt-get install devhelp

# Packages below are optional and maybe commented out
echo "Installing openssh-server"
apt-get install openssh-server

echo "Installing Midnight Commander"
apt-get install mc


echo "Installing gftp"
apt-get install gftp

echo "Installing geany"
apt-get install geany


# Comment this out if being used to install LCNC on pre-installed Mint installation
# Kerenl can be removed after a reboot or left in place
# Leave uncommented if respinning ISO
echo "Removing old kernel"
apt remove --purge linux-image-4.10.0-38*