I was also thinking about building a kit off the girodiscs (not surprisingly since our cars are so similar and we seem to have identical, impeccable taste).
I missed the poll but would have voted for black. In my opinion, red doesn't go too well with the girodisc blue or the bronze te's.
Here's a pic of a girodisc combo with a bronze wheel and black caliper. I like this simple combo a lot and will probably go with this to keep down the color contrast on what is my daily driver car. I have gold stoptechs with black hats on my old race car with original TE's and really like that combo too.
I hear you on the cost. I got quoted $800 for powder coating in my area, which doesn't sound too bad really, but I'll probably just paint and clear then myself, otherwise, yeah that money could be invested to upgrade brakes and get the color you want at the same time. I know Girodisc has some custom hat colors so calling them direct would help. When I built my stop techs for the race car I just had to wait a little bit for the gold vs something I could have quickly off the shelf. Maybe a different hat color might give you some more ideas or options with the PP red caliper color.
The main thing slowing my brake project down now (pardon the stupid pun) is I need to work out what will fit my 17" snow wheels and tires. I don't want any hidden surprises that add another bunch of stuff I need to change. Pic of the snows below. Lame offsets help me run chains but usually never need them.
I'll definitely be checking back in to see what you do as I am sure its going to look good.
