Very smart move and inexpensive too. I also managed to do something similar to this to our 2013 Toyota Highlander (I heard that it's the same as Toyota Fortuner in Thailand). I'm 168 cm height and able to sit without my head touch the car roof even after put the 3" thick memory foam bed. I and my wife just switching from tent camping after almost 40 years of doing that. I'm about to be 76 this Jan 2022.