Hey there Hakuen,
This plugin looks great, but currently I have one that changes the default and damage graphics based on hpRate. However, it requires hardcoding the faces and doesn't have functionality to automatically change graphics with actions and states the way you have it set up (I have to use common events). If it would be helpful, I can send you the code for the plugin I'm using currently and see how hard it would be to add the same functionality.
P.S. the Bitmap Font Pro plugin is still working great for me, thanks again! I'm about an inch away from buying the full winter bundle hehe.