I also could not find a way to fix the alignment of experience bar. You said something about editing the "Tilemap and secondarily changing the X and Y pos of the things to be displayed". I could not find a proper way to doing so (I know, noob). I'm experienced with scripts, basic ASM and hex edit, but I don't know where to start regarding to graphics.
That's great, and remember that we support those projects, I hope to see more interesting things about you, believe you can make a tool like that but ruby ?, I would give all my research, that way it would be easier: D