No clue, but I definitely second @Kidkaos that you want to make sure they're shooting a pearl white. They have a lovely pearl flake, it's not a flat color.
I’m currently going through a detailed restoration process with my Konami Windy 2 cabinet in the UK.
I’ve just had my cabinet professionally painted by a car bodyshop and they’ve done an excellent job. The paint I chose was from a Honda vehicle (being Japanese of course!) and the colour was called: HONDA White Pearl Tricoat. The paint code is NH788P and as the name suggests, is applied in three layers. Layer one is white, layer two is the pearlescent stage, and the third layer is clear coat.