This is a multimedia kit comprised of 650+ styrene parts on 17 sprues, magic tracks, one braided metal wire (which is very stiff even after annealing), one photo-etched fret, decals, and the set of instructions that need to be reviewed very carefully before gluing any parts together.
Most Dragon models today are a collection of old sprues with new sprues added to create a new kit variant. In this case, Dragon has done so and you will have some sprues with the same letter but are called out by the color or upper or lower case (see Sprues Black G, Blue G and Black g).
Step 1. This step is the assembly of the idler wheel, drive sprockets, road wheels, and return wheels. There are no problems here other than the removal of the mold line which is noticeable on the road wheels.
Step 2. This step is the chassis build. There are 4 mold stubs on the top of the chassis tub that need to be removed. If you don’t remove these stubs the fenders will not fit.