As far, as I understand your problem, you are approaching it from opposite direction.
Ultimately you will need to integrate all those values (I don't see script here, only values) into your game logic (that's therewhere "script" part will actually be). So, the main problem here is not how to read or store it in file, but how it will be implemented in game logic. Create game logic (engine) which will be flexible enough for you, and then the task to code it in some sort of file is easy.