Help! Need Info for my new custom wheel

Greetings members of the Z club.

Im about to customize rims for my 1977 260Z 2+2, im planning to get the 17" classic/4 rims from www.ccwheel.com & planning to follow Curtis240z's Z as shown in the attached picture. What i need is some advice from you fellow Zedders.

At the moment i am using stock springs & suspensions, but planning to get a set of Tokico Illumina externally 5 way adjustable shocks and Tokico High Performance Lowering springs

1. Is Front 17" x 8 and Rear 17" x 9 ok for my Z?

2. What's the maximum width size of rims can i go without making the rims stick out of the car

3. What would be the desirable offset size?

4. Is the PCD for Z 114.3mm?

5. Do i need spacers for these rims?

6. Im planning to install 280zx center caps as shown in the attached picture, what would be the size (diameter) of the center caps?

7. Is there any other information that i need to know before i proceed on customizing the rims?

Appreciate for your kind advices,

Thank You :nervous: