After assembling the GP One in Brisbane, he had to wait until CASA certified it. So he got busy and built a new hangar. Then he spent many days on a digger making a wider/longer main runway and adding a cross vector to accommodate the range of recreational aircraft that are based at his Queensland farm.
Then silence for many months. It turns out that he needed some maintenance and parts replaced on his own body. Now that he's got a new hip, he is up flying in the GP One again. And he loves it. Well done, Tim.