Looks like you would be in for some substantial structural rust repair from the get-go. Maybe both inner and outer rockers and the frame rails look pretty badly crushed. Once you hurdle that expense in new metal, you've still got to consider the front fender pockets, battery tray, floor pans and the real killer, what's lurking inside the front wiper cowl. I wouldn't touch a Z today without having the owner remove the cowl vent panel and letting me snoop inside. Bad enough rot in that area can total the car.
If a fella couldn't find another candidate, then maybe $1500.
If a fella couldn't find another candidate, then maybe $1500.