I am missing a part and not sure what to order; anyone know what I need to get and where?

I have a 2015 R3 Touring and recently took off the windscreen for some around town riding. The windscreen is quick release and there are four little round things the screen attaches to (pictured) and one of those vibrated off.
I need the round thingy and the bolt securing it.
I called a local shop and they looked it up in the manual and said the manual wasn't detailed enough for them to know what to order without ordering the entire windshield setup.

I have attached 3 pics. one whos both the side with a latch and one without; one shows a close up of the piece that I need (from the side that still has it) and the other shows a closer look at the spot where it fell off.

Also, my shield is too tall, anyone know of a good source for smaller shields?
Thanks!
Steve

any of the parts recyclers on ebay would be able to help you, just look for a listing for" Triumph Rocket III used" and send them a question asking if they have the needed parts....
also clearview shields offers a large listing of shield heights...good product