I searched long time for something like this but found nothing... So I decided to make it myself. It's fully written in Lua (after the TEXT in the conkyrc file is just a blank line
I made for the text, the rings and the boxes text tables so you can easily add and remove things, move them and change their size. The background image and the boxes are drawn with imlib2, so it overrides your desktop, you don't need to change your wallpaper.
There are 6 rings for the CPU, this is because I have a hexacore CPU, you can easily remove some rings if you have fewer cores.
In the bottom right corner is the volume in percent.
I used the rings by londali1010:[link]
and the analog clock is from this nice conky:[link]