You also need to consider the center bore, and that's a problem with four wheels of the same kind. The center bore is the big hole in the very center of the wheel, and its diameter is designed to fit exactly over the hub (the part that sticks out from the brake rotor when mounting the wheel). Unlike most cars, the NSX has different sized center bores, front (70 mm) vs rear (64 mm). If you use wheels with a center bore that's smaller than the hub, they won't fit (although you can get them drilled to widen the center bore). If you use wheels with a center bore that's larger than the hub, they may be susceptible to vibrations (many people experience this, although some seem to luck out). A work-around for the latter is to find hubcentric rings to fit on the wheels. But any time you start getting into a bunch of workarounds, you're just asking for trouble. I'd instead recommend getting either OEM NSX wheels, or aftermarket wheels whose center bores, offsets, widths, etc were designed to be used on the NSX.