Just remember the awesome scale of it. You can't go painting it in squiggly lines that would be "scale" thirty foot arcs and twenty feet wide.. You'd have to paint the lines extremely small.
I actually disagree with the concept. For such a massive vehicle, a monotone scheme would enhance the actual impressiveness of its scale. Breaking up its lines with camouflage would, in my opinion, occlude and conceal the tiny, fine details and cause you to "lose" the overall impression of the immense stature of the thing.
I think that a well-executed shading of "scale effect" monotone color would be much more effective. A vehicle this massive would look markedly lighter toward the top of it; more dark and shadowy down lower.