Everything at hand for a perfect BBQ:
- get hold of 2 similar block pallets.
- preferably sized around 110 x 100.
- get some boards from e.g. fences, around 10 - 15 mm thick.
- sort out the places where to put support, shelves, etc...
- start building.
It takes me around 4 hours to make one from the moment I've arranged my source material.