Well you can't do a pppp mod on this, the scratch part will definitely damage the coating. So you have to live with white numbers, that's all I'm saying ;-)
I (personally) don't think the PPPP mods look any closer to gen than the stock numbers do anyway. It's just a different kind of wrong, so whatever. Even the best done ones don't look completely right, and then there's some of the really really horrid and sloppy ones I've seen people do.
If you want it to look like a gen you're going to need a vaccum sputtering setup and the correct plat or gold mix to coat it with. Not likely