Gurney- sorry to hear about the damage.
The Z looks great at stock height imho.
I have no plans to lower mine. For street driving I've learned long time ago that I want as much stroke allowed to keep the car from slowing down. If the car came with rediculous wheel gap like the G I would be required to lower the ride, but not the Z.
Drove my Z today and she just reconfirmed to me she is fine as-is for street.