You can start with
https://www.mobileread.com/forums/sh....php?p=3934756. That gives a high-level description of what is needed. It covers everything, but, doesn't go into the details of the steps needed.
https://www.mobileread.com/forums/sh....php?p=4037059 has some slightly different details.
If you can copy the database over successfully, you will get everything. The database contains the book details, the status and stats, the annotations/bookmarks and the MyWords.