No doubt that the DIY is of a superb one. If you could have given the link for the screws and nuts purchase link in your description it would have been a boon for the people who are eager in attempting the diy.
Excellent, I subscribe directly ! I liked when you added the tire structures! Pretty work with nothing more ... a nail, a piece of pvc and off you go!!! ... FLAWLESS !! ... Hello from France ...