Hmmm, not sure, but I think your mod process could be simplified significantly.
The ida of the image mod pack is that you can download that once and put it in your stock folders so that any mod can use them by simply changing the text files in the data folder.
I am pretty sure all of the images in the FQM mod are included in the image mod pack stuff. So you could simply incorporate the FQM data files into your mod and not worry about getting all the images.
The result would be your mod would only need to to have the data files calling for whatever images it wants. Much simpeler. unzip the mod folder and tell the user they have to have the image pack pics for the mod to work. They'll figure it out pretty quick anyway.
Unless you have special images that aren't in the image mod pack. In which case you should get them added.
Someone correct me if I'm wrong about any of this.