Took this years ago. I "removed" 5444's improper class lights by unscrewing the die-cast details and then shoving the LED's themselves back into the smokebox (I assume that they are still operating). I then Bondo'd the holes and, surprisingly, had some old acrylic gray that essentially matched the smokebox color. Used a brush. But now, I wonder if I should use some of my 3-D rivet decals to replace the missing bolt heads?
Nah - at this point. I may change my mind. But, sometimes you can see the decal film. I'll stick with the wee blank spot.
Lionel's J3a's just have "the look", even with the improper early-style headlight "barrel" (why, Lionel? Why?). I filed mine to more suggest the correct shape from the side.