Such a beautiful car and well looked after. So I see you haven't put the roof wrap on as yet. Whats happening with that. Im thinking of a black roof wrap. Just deciding on gloss or matt
May pay to do some measurement yourself to see if they will fit with the way your vehicle sits now.
http://blog.tirerack.com/blog/tire-talk/getting-the-right-wheel-fit
http://www.rimsntires.com/specs.jsp
Anything is possible depending on your determination and funding. Been proven as dcdc is building a manual m35 with a r34gtr gearbox. Scotty was looking at a 350z 6 speed a while ago and I think the issue was the tunnel fitment when can be massaged to make fit.
the main 12v power source used is the reverse light circuit which can be found in boots top panel where compliance putsvthe baby seat holding points. All you will need is a test light to find the wire once the reverse gear is selected. Hope that makes sence