There are a lot of usefull parts and sheetmetal laying around there.
But you see this kind of thing most everywhere, this one just happens to be near all Mopars, but why do people/dealers who have these kind of resources not take better care of them? Just looks like a haphazard "who cares" way of "doing business".
Truthfully it appears he's done as much damage to the cars as anyone else, a little organization and care could still add years of "life" to a lot of those cars. To begin with I'd find all the X brands, crush them into display stands for the Mopars.
Seriously, you know what I mean, why further destroy equipment and parts? That's money in his pocket.