Givi is one of only a few options you have unfortunately.
Corbin makes the Beetle Bags, but those are useless for any real touring in my opinion. They're too small and ill-shaped.
I have Krausers on my Hayabusa, but the distributor for them doesn't carry them anymore I think. Check twistedthrottle.com You may be able to find the bags and racks used possibly, but new, they were equal to the Givis, so I'm not sure that the price will fit what you're looking for.
Good luck.
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