I saw this brake swap on the P15 D24 site; one of the guys over there came up with it and it's very cool. Cheap, easy, and all boneyard parts except for the caliper mounting bracket which he posted a drawing of so anyone was welcome to use it.

As far as color, my grandson is hooked on the orange idea so I'm painting the dash and firewall orange while it's apart. When I get around to painting the whole car I'll match it.