This is a multimedia kit comprised of 470+ styrene parts on 24 sprues, DS tracks, one photo etched fret, decals and the set of instructions that need to be reviewed very carefully before gluing any parts together. The DS tracks were packed well enough to not be misshaped with the guide horns flattened as it has been noted in the past.
Most Dragon models today are a collection of old sprues and 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 and sprue letters in upper and lower case.
There are not many options for you to choose between and none require you to do so before you start. You can pick as you go along.