That sounds like fun lol. It would be very synergistic as well.
From what I'm gathering, you guys like the cement but want black bricks to remain the same. I can do that. As for making almost everything brick? I can do that as well. It will either be the ugliest texture pack in the world, or the most genius. Sorry for editing your text Kral, but I can't read it so well.
Edit: Check this out
I'm not regretting asking for marble or sandstone brick, but glass brick might be taking it a bit too far (though I do like the grass brick)