So what you're asking is for somebody else to go into all the .zips and .jars, pull out all the default texture resources, and then upload them to you? I hate to be the bearer of bad news but I really think the best solution is to "find in jars". In fact, I can't think of any other way of getting what I think you want.
Or - why don't you download one of the more-complete existing packs and build on top of it?