I will have a number of questions as this thread progresses and I finish my super detailing projects. The question I have for now is, when did Santa Fe migrate to nose-mounted headlights from the cab-mounted headlights for their GP60s? Were the original Santa Fe GP60s delivered with cab or nose-mounted headlights? Also, did they originally have the wratchet-style nose handbrake or the wheel handbrakes? I'm modeling #4023 in N scale.