If anyone's using an Arch based system, you can edit the rpdp_install script by changing the following:
Comment out all the apt-get lines and add in the following pacman scripts:
sudo pacman -S pcre sdl2_net sdl2_image sdl2_mixer
sudo pacman -S vde2 libpcap lxterminal libxft telnet
You can put all the packages on one line.
Curtis