Person. (Wormbridge HR2)

I need some help to bend some sheet metal to make a lid for a trailer. I’ve cut the metal to size but didn’t think about how I was going to bend it over the edge of the trailer. I have drills, rivet gun, will get bolts but I don’t have anything to bend the 1mm thick metal with.
If anyone can help, it would be greatly appreciated.

       
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