Shawn have you tried to bend your quarter panel out any? Was thinking that you could use a bottle jack between the frame & body to press a bar outwards, just to move it enough to open the tail gate. Drive it over tonight if you want to try that.
82 fj40, 99 uzj100, 06 gx470
97 DR650, 05 525EXC, 01 XT225, 09 TTR125, 07 TTR90, 07 CRF50