If there is that Fowler tractor nearby, you may need to do a model of it!
I have some old Marion catalogs of the gold mining dredges they did with bucket lines like that model has. I've never seen a drag line like that with the three rails underneath plus the rails for the ore cars, there is a LOT going on in that video! On the gold dredges, the buckets went in the other direction to lift up dirt/rocks out at the end under the water, and lifted them up onto the boom, back into the dredge where they were dumped into a trommel barrel for washing before putting the gold/dirt through a set of riffles to separate the gold. Lots of different variation on that type of machine!
Great show, thanks for the pictures/videos!