I'm updating this original post with new links with new hosting, but have come across a new need. I don't have an RE5A parts manual scanned and can't find a really clear copy. If someone has an RE5A parts manual, taking care to check that it includes updated gauges, tank details, etc, please consider letting me borrow it for a few days. I can quickly scan and author a complete PDF like those listed above and would like to.
I have access to Suzuki Connect which is Suzuki's online parts reference for their dealers. They still list the RE5 so I can get up to date info on availability and interchanges from, so to speak, the horse's mouth.