Tailgate for a Skoda Octavia Estate (Helton CA10)

This is a very long shot. I have an old silver (08 reg) Ocatavia Estate that has still plenty of life in it. Except that the other day I was reversing it out of the garage having left the tailgate open. I'd been distracted when putting stuff in the back, got in the car and .... whoops. The collision was only mild but the circumstances were such that the tailgate has slightly buckled and will no longer fit. I am almost sure that it cannot be repaired. The car's MoT is due at the end of this month and it is bound to fail. I don't really want to scrap the car, so I am looking for a replacement tailgate - colour need not be silver - so if anyone knows the whereabouts of a similar vehicle that is no longer roadworthy and can be cannibalised, then please let me know.