Hi and welcome Dr. Vader,
Around 6/7 threads below this one in the Star Wars Preservation section… there are a number of threads on Harmy’s Despecialized Editions - which’ll hopefully help you find the info you are looking for.
There is also an Index thread pinned at the top of this section of the site - with a few links to various threads on the Despecialized Editions.
The Help section, linked at the top of the site, may also be of interest - as well as the General Assistance section of the site.
Good luck with it.