Yeah sounds good but the bases are made from javis war gaming Matt, it's kinda like sandpaper with bigger rocks on it n you simply stick it on and file round it ha easy
not a huge probelm really. just get a color that matches closely. you dont need to be exact. For my weathering i tend to use a mix of agrax earthshade and whatever of the technical paints i used to ase the model. this adds "grit" to the effect as well.