Talked to an agent today that said their company deals with a couple firms that will insure modified bikes and cars, but it's done on a case by case basis. I make a list of the mods, and submit them, and they either refuse coverage, or come up with coverage and a premium.
When he heard "Hayabusa" and "turbo" it took him a minute or so to stop howling with laughter. Funny for him, but an omen of things to come for me.
I really do want to ride the bike on the street, but it might end up being a track tool.