Well, I banged my head against a couple of the OpenJava versions I could find, JDK and JRE and none of them wanted to play nice with the game.
I did find a 'cluster fuck' of a way to get the game to run though:
Create a new folder.
Copy the contents of the jre1.8.0_172 folder from the EXE version into that new folder. (Not the folder itself, just the files and folders inside that jre folder.
Extract your modded version into the Bin folder of those copied jre files.
Open a Command Prompt and navigate to that \Bin folder.
Enter: Java -jar lt_cmod_edition.jar
Game seems to run just fine like that, but I know, that is a kludgey, half assed, way to do it.
Every other version of Java that I could find (Mostly OpenJava or portable versions), just never opened the game, or it returned errors about JavaFX or complained about missing Java files or could not find a referenced file.
It works, so, fuck it. Imma gonna run with it.
Can't say much about the game yet. I had 3 or 4 fights on that first night in the Arcane storm and futzed around a bit after that. The error log had a few complaints, but nothing bad so far.