Forgive me if this has already been mentioned, but the JPN I restored some years back (now in Norway in a collection) had (has) the strangest addition for the fork stops to prevent handlebar-to-tank interference. It consisted of two coat hanger-like pieces that hung straight down from a weld done on the front fairing mount. They essentially sat on either side of the existing tab we all know and love, and of course caused the tab to be "wider" by way of these additional pieces.
I have an entire roll of shifting decals that are placed beside the fuel access cap. The Britax oval footpegs were found in Chicago, and I went to a fellow (Art Sirota) for an original Avon decal that I had a good designer friend lay out to make additional Avon decals (single one set at front of bike, just forward of gauges). The black chrome bean cans were done (a pair - one sold to pay for both) at a place in California that was about to close due to proximity to a school.
A fun bike, but I could not get used to the reflection of the sound of the engine within the bodywork echoing out, and I was very afraid of dropping it and scarring the mufflers. The money I got from the sale to a collector was part down on a house we purchased. I was fortunate to also have 305308, a Roadster side covered, steel Interstate tank'd bike that stole my heart and still does (at least until 314219 is completed). Really fun memories!