You might want to look at the cycle cat web site, they do billet sidestands (for Monsters etc..) that you can order in different lengths according to how much rear ride height you've got.
I've got a lot of ride height on the back of my ST and it makes the sidestand too short, leans over summat alarming, since the ST and monster are closely related I thought about getting one.
Don't know about 916 shape ones though