The seller goes by Highspeedassault, not heard much from him lately though. There was also a guy on Oldschoolsuzuki who made a set to fit SRAD 6 or 4-pots to a Bandit 6- should be compatible I think.
TBH though, unless you've already beefed up your forks or you weigh about 9 stone it's not going to benefit you more- you'll get more braking benefit from better forks than better brakes, I reckon, since the SV's braking's more restricted by soggy forks than by the calipers. That's assuming you're not freakishly light like some people

And once you get into that... Well, calipers, mounting plates, springs, oil, ideally emulators, it all adds up- could end up more expensive than a whole transplant. That all depends how mechanically competent you are of course.