The little stuff is the worst! and I really don't want to know what i spent on this thing, as long as I know I didn't cut corners and it is how I want it, the $ is whatever, so I just don't keep track.
on the dash I'm actually using a printable undercoat type stuff, I don't remember which stuff of the top of my head. I was looking through random dash threads and I came across it and they had good results. It is more flexible, durable and less prone to cracking.