Thanks for the reply. Unfortunately, for the original Kindle DX the guide at kindlemodding.org does not work. I have used it for several newer Kindles, but not for the original Kindle DX (ID 0004)
I did however eventually find this thread and it got me to a working KUAL and KOREADER
https://www.mobileread.com/forums/sh...ight=Kindle+DX
Case closed. :-)