Well this puts me in a bit of a conundrum.
I looked at the measurements we took of the “original” headlight at CRRM Jeff is referring to. It is a few inches smaller in all three dimensions than the 191's reproduction UP headlight. Since I have the frames and engineering drawings already made for the 191-like headlight, I really don’t want to start over. I could still however make the top like the “original” since I have not started on its drawing or ordered the material. That would result in a sort of hybrid with appearance of the “original” headlight but the dimensions of the 191 UP headlight. I will get some advice from the DSP&PHS and South Park Rail guys before continuing.