This is the main reason I do not sell the doors and hatch for the Z32 for street Zs. If everyone knew what these panels do for your car (NOTHING) to keep the integrity of your Z in tacth. Those items are for racing only and are not permitted to be used on a street car by any means.
Theres a reason why body panels are made...for racing applications only. I have a very strict policy when I sell the LWRRP doors and rear hatch to customers.