A link to the diagrams when you post diagram #'s would be time saving.
I recently-ish purchased these from 4into1 and they worked for my ST90 if you dont need original:
I think the bulbs needed replaced with 6V. If you want OEM, I have the rubber pieces orig in the wrapper. Also a couple of the metal brackets, used, a bit bent and rusty but salvageable- but which I'm just seeing now unfortunately appear to be from the same side. CB125S parts will also fit, there will be more used bits for that out there than the ST90.