I have recently taken the illustrated units out of my vw t4 which the previous owner had constructed themselves in order to convert it to a sleeper. Im in the process of trying to sell these on ebay with no reserve. Im getting a lot of questions from prospective buyers wishing to know if they can settle with me on a price. The problem is I have no frame of reference so I dont really know their true worth. I was wondering if someone could give me their opinion. Many thanks.