Dang, sorry to hear the unsatisfied outcome. Appreciate you letting us know for future reference. I personally have the Xii Performance "Sittin sic" drop springs on my truck. They have been discontinued for quite a while but every now and then I see fellow members post a pair up for sale...
Hmm, I do see his name pop up in the members listing but his latest activity was back in 2018? Long shot but maybe try and explore Instagram and or Xrunner Owners Official Facebook Group. Now a days everyone has an their grandmas have Instagram.