Here are the instructions for installing and configuring conky with lua clocks and NEURPOLI.ttf. You'll need to install conky-all, and use the attached tar.gz file. The steps in my example will be using only the Terminal. The easiest way is to open a Terminal using Ubuntu is by hitting CTRL+ALT+T (this will open your terminal default in your home /home/<username>).
In order to install conky-all you will need to type the following:
sudo apt-get install conky-all