I've been working on an N scale Rix "Guthrie Grain" kit for the past little while. I added a 3rd tank to the kit and plan to add more.
Additionally, I've been adding small details such as a light on the tower to light the work space below and reinforcing wires on the feed pipes. I will be adding more tanks, truck scales and unloading for rail and truck traffic, shelters for unloading, office building, fences, etc. as time permits.