Hi Chris,
I couldn't find any material to share with you. You may have to go through some trial and error on your side to figure it out.
I just found a note from Sebastian that may give you a pointer: https://www.dnnsoftware.com/forums/threadid/542047/scope/posts/dnn-911-localization
From my personal experience: I did a project a few years ago on DNN9 that was multilingual. The native implementation was not very stable and the results were not that good. You may want to consider different portals for different langauges. My 2 cents.
Best regards,
Aderson