Yes, I've found in general that substituting for dairy is much easier than replacing eggs. I find soy milk a really easy substitute for dairy. Some people can't eat or don't like soy, and that makes things more complicated, but it's still easier than replacing eggs. I did just a week or two ago make scones with almond milk, and though I was very nervous about it, they were fabulous.

With regard to egg substitutes, life is now somewhat easier with the advent of chickpea water and cashew cream, but I haven't done much experimenting with either.

I agree about the cookies. They are hardly any trouble even with double substitution. I've mostly stuck to fruit pies, and to a quite amazing chocolate tofu pie that's just tofu, melted chocolate chips, and vanilla. My brother actually asks for it for his birthday, though he is not remotely vegan.

Vegan quiche is never quite right, though it can be very good.

P.