Here is a little update.I finish the stripes.I use Valleyo dark sand with very little mix with yello ocher.Stripes are painted with brush ( 3x0 ) with free hand.I wanted to make simmular effect as it was in real size.

Weels are in differnt tone of oxid-red-brown.On driving wheels I used Tamiya weathering set,gun metal and steel pigments.
Model is washed on the last picture.