There several additional problems you're going to run into.
First, 225/45-16 tires in front are too big and they're going to rub, big-time.
Second, the front needs narrower tires, usually 205/45-16 or 215/45-16. A 205/45-16 cannot safely be mounted on a 16x8 wheel. And tire choices for the NSX are very limited in 215/45-16, which is why a lot of folks use 205/45-16.
Third, the hub and center bore diameter is larger in the front than in the rear. So you won't be able to mount a rear wheel in the front, unless you have the center bored out to a greater diameter.
Fourth, the offset is higher in the rear than in the front, so a rear wheel may rub on the suspension or the inside of the wheel well unless you get spacers. And spacers have their own downsides to deal with.
Bottom line is, it's just a bad idea for a whole lot of reasons. That's why nobody is doing this.