The construction of the car turned out to be not too expensive. Only the precise installation of the front / steering axle was something puzzling according to the instructions. But bringing a product pictured here clarity.
The quality is decent: axles, wheels and the main frame to make a sufficiently strong impression. Even under load the trailer can move well and manage quite well by the light steering. The fine metal mesh, however, should probably not be burdened too much circumstantial. In order to distribute the weight stable and secure on the entire floor area, I let sawing at the hardware store an anti-inflammatory 18mm screen printing plate fit (1005 * 510mm), which rests flush inside on the main frame.
The supplied Plane I do not use. For transportation of earth and wood, I have asked a mortar box 90L plastic in the car. The fit in just fine and is certainly stronger than the tarp.
After building it is better first time make the product the way a while aired outdoors, because the tires - like most wheelbarrow tires - vigorously evaporate plasticizers.
With these "conversions" of the car for me is now an ideal workhorse. Price and performance are proportionate and therefore there's me 5 stars.