I think I have a pyramid plastics one hanging around in my garage for the SV650. Never got around to making brackets for it though.
https://www.pyramid-plastics.co.uk/a...tNumber=20660A
IIRC they're decent fibreglass, so might be a bit heavy for racing but you could fabricate a catch tray to fit inside it. If you need some pictures let me know and I'll dig it out.
Keith.