This kit is a model of a prototype by the Henschel company.
This is a multimedia kit comprised of 420+ styrene parts, DS tracks, 4 preformed photo etched parts, and 2 preformed steel wires, and a much better set of instructions, but they still need to be reviewed carefully before gluing any parts together.
Step 1. This step is the assembly of the drive sprockets, and idler wheels. There is a lot of the rear plate that will have some material removed.