The reason why mods must override the slot layouts is to put a damper on cheatsets and ensure the game is fair.
What would be useful is a set of layouts for each size;
tall, wide, and round. You could then have racial traits decide what kind of layout your ships use.
Looks fine to me. I'll probably use it for the generic slot layout in the Balance Mod. I'll think about giving you some credit, but then again it does sort of look like some images I cooked up before release.