Watch on YouTube: 

In addition to the pressure parts, you will need:

4X bolt M5x25 (the axle can be further adjusted with pliers) M5x20 is also sufficient)
4x M5 lock nut
8x ball bearings (best way to order rollers or take old ones, from your Ender 3 right away)
Camera Ball head 
Adapter screw 
 

Printing

Support on!
Carrier (the blue) and tires in 0.2 
Rims and hub caps are printed in 0.16. 
If you want it: Fuzzy Skin 0.2/0.1 (distance/thickness)