I by no means am endorsing this site, however, I found a great place to look at exploded parts diagrams for the Vulcan 900's and many other bikes(The link is for the 2009 Vulcan 900 Custom SE but they have every year and model) and it helped me find what I needed, so it may help others take stuff apart/put stuff together.
Very useful, thanks for posting.
2009 Vulcan 900 Classic (Zhaan)
OEM Windshield, Crashbars, Sissybar
OEM Slim Saddlebags
Crampbuster throttle control
Wagner BP1210/H4 headlight & 2357LL taillight
FIAMM Low tone horn