Need help from ex35/ex37/qx50 owners. The length from rear hatch to the back of the driver seat, and width above the rear strut tower cover, side panel to side panel (I am 5" 5", and I do not put the chair too far back when driving). The car is at the airport, and I must pick up a plywood on the way home measuring 58" by 48". I am assuming I can do this on my ex35, perhaps by inserting it diagonally will help, since the bottom cargo floor by lower rear strut tower seems only in +/- 40". Thank you so very much.