Can someone tell me how to get the aluminum panel off of the back of the tailgate without ruining it?

I found a really nice one in the junkyard today for an 80-86. I'm going back tomorrow for some other stuff for my F250 and I figured I'd pull it off while I'm there.

I see some nuts along the outer edge of the tailgate, and I'm assuming there are some clips or nuts inside the tailgate? I don't know if there is any demand for this kind of stuff, but it's too nice to just sit there.

Thanks for your help.

 

Yea, theres some more nuts in side the gate.