Information about a damaged rear bonnet F40

Hi all,
I'm looking for some information about my f40 damaged rear bonnet.
Maybe some off you van help me with it.

Somebody is interested in my F40 rear bonnet and want's to buy it from me..
I myself bought it for 2000 euro's 5 years ago but he's still in the storages and not on my wall as i was planned to.
but i don't know the value off it.
Ore what to aske for?
The one's i can find on google are all refurbished and for a big amount of money for sale.
But what could I ask for a damaged one?
The car was crashed on spa francorchamp and really is a great deal of damaged as you can see on the photo's..

Hope someone can help me out on this one

Regards Michael from the Netherlands
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Haha that's less then the 2000€ i payed for it myself

 

i don't know the body nr..
i only bought the rear bonnet off the car and the bodynr is on the front i guess