I'm facing the same issue when I screw up my courage enough to tackle the Williams Bros. Lockheed Electra done as Amelia Earhart's plane. I already know that the kit leading edge and stabilizer decals are the wrong color, so had planned to paint those on, but then there are the other decals, mainly those HUGE serial numbers. How to make them go down smooth, stay down and then blend in?????
That said, I'm debating between Testor's buffing aluminum in the rattle can (no, I don't own a airbrush) or Bare Metal Foil for the whole thing. Seems like a real Hobson's choice to me!