All depends on the look your going for. Personally, I really don't find white that hard to paint. Prime black and then airbrush the white over that. Light gray wash for the recesses (or a blue wash if that's your thing).
Hi Nacho we have several painting tutorials on painting white. I have included some links here for you, they are all contained in the Painting and Airbrushing Index, I hope these help, just click the links.
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