Thanks Augustus. I did some research and actually you can find pretty much anything online
Edmunds, carsdirect and the DMV site were helpful in determining what a fair price for the Z I'm looking to buy would be.
Tip for my fellows in California:
https://www.dmv.ca.gov/FeeCalculator...VehicleForm.do should give a good estimate of OTD price (licence plate fees not there..) based on the most recent tax laws.