I have seen a AuLLMA.cs for NT8 either here on on the NT Ecosystem user Apps.
I can see why you have interest but that code eats up too much CPU for me so I moved on.
HedgePlay
I can not edit the first post. Here is a NT8 LLMA link from 2017 that might help.
Each comment I left includes a link for you so be sure to read all three comments. Be sure and Read all Three comments.
Here is the link to the AuLLMA.cs I mention in the first comment.
https://ninjatraderecosystem.com/user-app-share-download/supertrend-with-complete-collection-of-supporting-indicators/
Ok, my good deeds are done for the Day. Time to go to sleep.
HedgePlay