There are so MANY things wrong with those pictures, I'm at a loss of words and I don't know where to begin. I could probably write a novel, since pictures are worth a thousand or a few hundred thousand words.
There should a be a lawsuit. That Z is worthless at this point. Drywall screws
(There's enough drywall screws on one skirt to almost hold a 4x8' sheet of Sheetrock.) Looks like he's swapping out springs in one of the pics, I think he could've installed the kit himself.
"If it don't fit, you must acquit" or quit molesting it to get it to fit. Looks like a drywall screws and a BFH were the only tools the body shop had.