I put the bin house together. During the course of the build I decided to change from painting first then gluing to gluing a structure and painting. I can do this since the first coat of enamel will cover any glue spots.
The kit came with a thin sheet of 'corrugated Al' roofing. I did not like it all mostly because it looked more O scale than HO scale. I opted for a 'tar paper' roof using a method I saw on a Jason Jenson Youtube video. It is black construction paper painted dark gray. I then sanded with 120 grit paper to remove spots of the gray and fray the edges. there are various shades of weathering powders applied.
The structure was painted dark gray then washes were applied using burnt umber, burnt sienna and raw sienna acrylic paints followed by weathering powders.
Next up is the trestle deck structure.
Gluing the individual post structures together was somewhat of a pain but it got done. The kit instructions called for board by board building of the ore bin. I opted for a scribed sheet instead. As can be seen in the above photos it came out just fine.