Other option, not really Zorin but it worked for me, is to install Raspian OS Lite, install xfce on top, xfce Zorin lite theme and Zorin lite menu on top. Pretty decent, Zorin inspired raspberry desktop based on debian, not so different from Ubuntu 
. Please check this thread https://forum.zorin.com/t/new-zorin-os-challenges/5236 some more info on this matter.
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