You will require 6 M3 Insert and 6 M3 Screws to assemble.
Chassis assembly
Tires assemble
Amazon link below,
Knurled Inserts, https://amzn.to/43v83uf
M3 screws, https://amzn.to/3x9LrmY
I have attached the 3mf set up to print Body only. The rest of the parts easy to figure out to print.
Use Tree supports please.