This looks interesting. I'll bookmark it.
Since you're adding redstone blocks, I can't help but long for bluestone (aka nikolite) blocks. It would be nice if the painter was compatible with indigo dye as well, so I can save my lapis for lapotrons... laser beams... that sort of thing.
1)I know this doesn't really have anything to do with IC2, so it may not interest you.
2)I know Eloraam can be particular and people are hesitant to step on her toes. I don't know just how particular or how hesitant though.
3)Yeah, if it bothers me so much, I could just do it myself. If I wasn't lazy.