Brian, that is helpful. However, please understand that the aftermarket bumpers / noses are NOT the entire bumper assembly.
If you look at that parts diagram, there is a bunch of structural stuff, brackets, retainers, turn signals, etc.
But a typical aftermarket "full nose" replacement is really just a plastic "shell" that replaces the visible parts like the bumper cover, lower valance and spoiler.
The exact details vary depending on the aftermarket part, but a "full nose" replacement will typically replace parts #1, #16, #18, and #19 on the "front bumper" section of the parts diagram http://www.nsxprime.com/FAQ/Reference/1991-1998_repair_catalog/parts2.jpg
The cost to replace and paint just those 4 parts with brand new OEM parts would be around $1500-$1800 at retail -- a few hundred less if you get a decent discount on the parts.
If there is structural damage underneath, or to the turn signals or headlights, or anything else, it will need to be repaired in addition to replacing the bumper cover and valance (the top and bottom halves of the nose) with either factory or aftermarket parts.
