Subaru Blue (Tamiya Paints)
#2
I'm a newb but that's what I'd suggest. Their brilliant blue is brighter than that and regular blue (ps4) is darker. The blue in my pic is the metallic blue backed with white. I tried silver also and it was a little darker. The only other option would maybe be translucent blue but I've never used it so not sure.
#3
TS50 is subaru blue but its a synthetic -lacquer spray paint for plastic models. I used it on my TC4 and it held up alright but in a heavy crash it will crack and chip.