The tracks for the kit (Firefly and Easy Eight) are over 900 parts, yes, just the tracks. But the instructions are simply wrong.
There's a better way to build them anyway. The pins (F2) come in sets of seven that you can remove from the sprue as a set, so first of all do that — but leave them as sets of seven. Glue a guide horn (F5) every pair of pins.
Use only the bottom jig (F1) to assemble one set of six links around a set of seven pins-with-horns.
While the glue on that dries, take two bottom jigs (F1) and cut the round bits off the ends. Join them by glueing a piece of plastic card underneath, and before that dries, use the assembled length of track to make sure the spacing between the two jigs is correct. Let the glue on the jig dry.

Now you can put a set of seven "outside" blocks (F3 and F4) in the jig, place the assembled track onto the end, put a set of seven pins on top of the blocks and glue the "inner" blocks (F6) to the outer. Cut off the sprue from the pins. Repeat.


Also beware that there is a
lot of stretch in these tracks:

That is: 34.5 cm long when fully stretched out, 32.5 cm when pushed all the way in, for a set that fits an M4A3 (HVSS) model.