Trailtech singles went 16500 to 20500. 53' went for 13500, it was'nt a true Trailtech. Homemade single combine trailers went from 5000 to 9000.Not sure about double fold head trailers. Old double head trailers went 1500 to 3000. Volvo's went 5000 to 14500. Service truck went for 25000.