Thanks to the posting and a lot of patience I got the final light fiberglass cabin and durable and with few hours of smoothing and finishing the final result has arrived.Constructed with two iron pipes from 60x30 mm and 1.5 mm thick the frame is sturdy and can withstand heavy weights and twists, thanks to a structure attached to the main frame by four springs and two sturdy strips of iron, the motor 750watt 36v moves along the wheels and a sprocket-chain drive transmits motion to the twin wheels.To make the model more realistic, I installed a smoke machine (those used in disco).The last big hurdle is the power of the model: I chose to install three high performance gel batteries that provide 50 Ah,900A starting power each one.Since an electric model is silent and unrealistic, I installed a Tamiya's sound model which simulates all the sounds of the real truck.Due to the size and weight of the model (210 cm in height, 100 cm high and 60 wide, with a weight of almost 180 kg)