If you are interested, I have a set of code for godot 2.1.5 beta that is mechanically a complete visual novel. I would also be willing to answer any questions you have. However I can't devote much time to aiding in further design as I have my own visual novel to complete. here is the data https://drive.google.com/file/d/11gBSi5xbRX9B5Sx6fuEWBEGLFzaha6zS/view?usp=shari... , you can contact me at mifyoo@yahoo.com