It was a dealer but a trade sale! sold as seen job! (was not even cleaned!!!
Just how the customer dropped it off.
Don't let them make a mug of you.
Which cover it is is very important here. The first one in the useful pics above is a structural part of the car, it must be fitted and all bolts present and correct for the car to be legal and safe to drive. If the captive nuts are damaged this could run away with a few workshop hours I suppose the wire grille could be argued that way, it does keep clothing and untrained fingers out of the works and you can open the boot while the engine is running if you have 2 keys. The dealer must have paid more than the trade price when he .part exed . If he was running his business right he would still have been able to send it to auction where he can turn it into cash and forget about it.
Anyway, i hope you can save the car and enjoy it for years.