buils this one myself, it is a nice kit.
One word of warning: be carefull with the front windshield, it is very fragile and can break easily. handle with care!
Why so many tires in the kit, I count only 7 on the truck.
You are seeing 14 tire halves. Each tire is a two-part affair, sandwiching the rim between the two halves.
With Diopark going away, I am not surprised.