tire sizes for sure 215/40/17 + 255/35/18
its tricky to guage wheel fitment but oem 2002 nsx is 17x7+55 17x9+56. based on that ive seen mildly lowered nsx's run 15-20mm spacers front and back for a more flush fitment front and rear. im going to assume that the 18x9 you can leave and maybe recommend 5-15mm spacer for the front. actually i think a set of 17x7+35 and 17x7+45 model 5s were just sold recently and the 17x7+35's were stated to be flushed to the fender upon test fitment (not sure what suspension setup it was).
when comparing use the site below to help compare offsets. remember that when mounting tires, the same sized tire can be mounted slightly wider then rimA, while the tire can also run stretched on a wider rimB... which makes it more difficult to calculate perfect offset on paper perfectly.
http://www.1010tires.com/Tools/Wheel-Offset-Calculator#Results
like alot of the guys here will tell you to test fitment based on suspension setup. tire brand/model will also be a factor as certain tires are shaped 'boxier' then other brands, which will also effect rubbing/fitment.