Well i'm popping over to get a couple of bits as he's local to me so will let you know of my experiance.
He/they just sound like any typical breakers to me, when you deal with them you've got to treat everything with a pinch of salt, he obviously has never 'owned' this car, and probably doesn't know anything about them. A Z4 is just a Z4, all the same hence not realising he'd put a faelift pic up!
Anyway's, hoping to get a few bits, but will see, if they're like a typical breakers i've delbt with everything they've taken off will probably be broken and damaged due to the only tools they have being a hammer and screwdriver!