Currently looking at getting a Z31 Californian, as a daily... stay tuned (is in getting inspection)
For what they are, and the cost etc, its a pretty good setup, couldnt get much better for $4k...
i have a Californian. I paid $3000 for it and love it to bits, it is very nice to drive.
the are no sports car though, there targa roofs give them the structural rigidity of a wet noodle.
Look out for leaky injectors, this is there biggest fault. if they are leaking vl turbo injectors will fit if you swap to the non turbo single feed fuel rail.
if you want to know where the ozzy z31's hang out check this out