1. No.
2. 155/165 front and 185/195 rear (for the "skinny retro" look)
3. Not for the last 20 years, sorry!
Great idea on the steelies. I'm not restricted to going for the Cal-Look, so I'm using 5x112 late Golf wheels, 5" front and 6" rear on my project.
That might make me a bit biased towards stel though I guess!