Don't literally remove the hinges. Instead, pull the pins out. A little squirt of WD40 will help them to slide out easier. We typically will have one person on each side holding the clamshell and a third person to pull the two pins. (Disconnect the two struts and the window defroster connector first. Don't forget to put a layer of two of blue painter's tape all along the edges). After the second pin has been pulled, there a little trick that will help you. The persons on each side should be holding the clamshell so that the front edge is about 12" open. Have the person that pulled the pins press down gently in the middle of the rearmost edge. Press down and forward. (To properly release from the hinges, you need to have this ~1.5" horizontal forward motion. The same applies to re-installing the clamshell. Two people holding it - about 12" open at the front edge. Third person stands behind the car, aligns the stripes with the clamshell about 1.5" too far forward and then it will come back into the hinges. The persons on each side can then pivot the clamshell open so the pins can be re-installed.