You're in luck. The first complete translation of the Guo Xiang commentary is out now:
Zhuangzi: A New Translation of the Sayings of Master Zhuang as Interpreted by Guo Xiang (Translations from the Asian Classics) https://www.amazon.com/dp/0231123876/ref=cm_sw_r_apan_i_AQJ1FK2536Y9D1DEJXV1