Wheel/Tire size
 

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Pretty straight forward fitment, will clear stock body just fine.

F: 245/35
R: 275/30

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Look at the pictures with the red lips in the first post in the attached link. They were +35 all-around on NF210's as well when those images were taken. Not quite your specs but it gives you an idea.

F: 18 x 8.5 +35 245/40
R: 18 x 9.5 +35 275/35

https://www.clublexus.com/forums/sc-...ld-thread.html

Managed to dig up some images of fitment from the front and rear view.

Front:
http://i52.tinypic.com/m97ndi.jpg

Rear:
http://i52.tinypic.com/wisytv.jpg

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Correct, NF210's.
Offset wise, your wheels will sit closer to the strut by 3mm all-around. In other words, your wheels will be 3mm less flush compared to those in the images.

Same suspension, I think what may have happen was I had the wheels off the car and back on without letting the suspension settle. So it was a tad higher in the two images attached. The ones from the other thread was the final height.

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Virtually? No, it's not going to be noticeable. However, you will find yourself looking into spacers down the road to push them out a bit.

The farthest I got with those wheels were 5mm spacers in the front and 8mm in the rear. Resulting a 30 in the front on factory fenders and 27 in the rear with aggressively cut fenders.

I think you'll be able to push the fronts another 7 - 10mm easily, considering you're on NF210's (they don't drop dramatically, only about an 1 inch). The rears, I think you may be able to get away with a 5mm spacer if you choose to run 275 tires.

Miss read the original post for 18's. Please disregard those tire specs. They should be:

19's F: 245/35
19's R: 275/30

18's F: 245/40
18's R: 275/35

My appologies.