I don't think that would be a great idea, since the file would be quite big, and modding programs are still updated (DatEdit, for example).
Unless it includes all useful modding programs, it's useless, and if it does, it's a huge download that can quickly become outdated and still is useless since almost no one use all tools. There is pizuscag's modding compilation in the DL-section, but it's a dumb package really, due to the reasons stated above.