Thanks, John, the pictures are great.
Thanks, bcp, this is just what the model looks like.
John's pictures show that the one at Leadville had the lower part of the cute removed, but runs straight.
I'll have to decide which of the other two might work as an alternative.
At both Alamosa and Leadville, there was a sloped wood structure that covered the bottom of the conveyor, which would also be an easy modification. The model comes with a steel, above ground bin.
Looks like a more interesting project now, whichever "direction" I go.