Yes, all the shiny bits came from China, but none of them are load bearing in any way.
I'd provide links to eBay, but they'll expire, so here are the titles so people will be able to look them up via search:
BMW High Flow Bell Mouth Air Intake SILVER / R NINE T
It comes with a mesh screen, but I left it off.
BMW R NINET ENGINE OIL FILLER CAP Titanium GR5 / R NINE T
Now you need a hex key to get the oil cap off, rather than fingers like the OEM, but the key is provided and I just tucked it under the seat.
BMW R NINET Frame Insert Kit 13 Part - Silver / R NINE T
One of the pieces on the left side is blocked from mounting by the throttle body; someday I'll get around to pulling it to put it in. Not too important as, guess what, the throttle body blocks most of it from being seen anyway.
Yes, that's a toaster tank in the background, and its attached to a 1973 SWB /5.