Is the mod compatible with Epic Fight? It would be fantastic if it is, but I do somewhat doubt it would be, since they both change combat heavily.

If not, would Epic Fight compatibility be within the scope of the mod?

Personally, I don't use this mod because I find it incredibly clunky and I don't believe MInecraft suits a "souls" style combat system. I probably won't look into ensuring compatibility, but I won't say no if someone PR's it.