I suggest submitting photos of what they want, regardless of what you have. Are they going to visually inspect the bike in that great of detail at customs regardless of what you submit on paper? Don't give them any task of 'allowing' anything outside of what they want. Bureaucrats don't know, or care, about reality, only what they are told to allow or not allow. Although your one motorcycle isn't going to amount to a fart in a hailstorm, bureaucrats don't differentiate a private owner of one vehicle from a manufacturer importing tens of thousands. to them, rules are rules are rules, and their insignificance or irrelevance only makes them more rigid when anything deviates from their "standards". I suspect every lying-ass government will be attempting to outlaw any form of useful transportation possible in the next 20-25 years, regardless of reality.
Only 10 States in the U.S. even have vehicle safety inspections, opting for "emissions" testing that is tied directly to the vehicle licensing. They don't care about the actual reliability or integrity of a vehicle, just a bureaucratic standard they can use to bludgeon more money out of you with.
I sound bitter and disillusioned, don't I, lol!
I know it sounds excessive, but I have found from experience that a good arsenal of acceptable documentation goes a long way in dealing with bureaucrats. They will tell you what they 'must' have, so you find a way to provide it. Don't ask them how, because they don't have a clue. Don't tell them how, either, because they don't want to know. Knowledge imparts responsibility, and that's the last thing any government worker wants. They just want to get paid for 'doing their job' without reality complicating things. So you just have to make it as easy as possible for them.