CCW's are nice. Don't go to hybridz.org all they know are knock offs. Don't base your judgment on the red car either his sizing are failed. I love big wheels but if your keeping it old school and watanabe is the way to go and like I said you would have to be going 15's. now since your going for performance that yes CCW's are the way to go but I'd rather rock some Work wheels but you would have to get them in 15 also for some crazy offset, well looking at the PDF file for there size they offer.
The watanabe post from datsunspirit.com are perfect for normal ZG flares but 9.5 rear is just not going to do it for the OP. I had 12s before and I feel like I never want to downsize haha.
I thought 15's are lame but when you really thing about it is perfect for this car time period.
this picture of course is no help but I am just letting you know that 15's are bad.