It is possible to create a copy of clean theme and adapt it to suit your site. Because this theme is pretty basic it's quite easy to style, and you can do it using the custom settings too. It's what I would call easy-peasy
Edit: Oops I read it the wrong way...I need new glasses!
I often see back to front...Magic pictures et all...
I thought you meant make Clean theme like your current site which would be very easy! You have a great looking website why not make Moodle look like it?