Pachis83 made it work on Android 6, and now I am working on a fork of his work. I think I've been able to bundle the jna .so files in the APK - it now installs. But since I don't have emulator of Android 8 with Xposed installed, I will be able to try it tonight when I get home.
I saw what is done in the code in order to work with Android 6. I will at least try to make it work on 7 or 8 - there's only Android 7 and 8 Malaysk ROMs for my device.
Here's my repository:
It is already bundled there. It only needs building with Android Studio and makes an APK with .so's in it, which installs, at least on my phone and emulator. But they both don't have Xposed installed so I cannot tell for tthe moment if the problem with libjnidispatch.so is rectified.
Unfortunately I cant help, limited knowledge like you, but it seems to me just a case of finding how to make it recognise the lib, so I can only offer encouragement - it seems youre not far from making it work.
By the way, there isnt just Malaysk's ROM for your device, theres also Booroondook's and the SVA ROM, plus you can root the standard ROM, although I m not sure if it would work without mod on either of those. Also @Hal9k_ is working on an Oreo to, it ll be a while before its ready, maybe he could offer some help ?