how to fix this trunk?!

seeing I had a suspension installation bummer today, i decided to try and fix a rust patch on my trunk... then after trying to fabricate the sheet metal to fit the trunk i realized it wasnt matching up properly, then i looked at the trunk and realized there was more dents than i thought... I also realized that it was probably impossible to fix with a hammer and dolly.

How can I fix this trunk? Or should I just buy one from a donor car?