This looks great. It would be great to test it out, but as others asked... What do you mean by a few blocks that are missing? Do you mean that the originals are still there you just haven't yet created the new textures for them?
Lol the technique I used for it is changing the color hue of the texture, so it's pretty much the same texture with a different color. I get a lot of people telling me to not make it pop out since it's a flat texture, So I did this method so it doesn't protrude from the rock that much.
I liked you old images of the ore(besides the coal, this coal is better)
If you could just take those textures clean up the edges a little bit and slap them all on the same colored stone block I think you will be onto something. The only reason it wasn't as good before was cause all the blocks were different colors and it wasn't going to blend from one another very well.