Have you measured the length and diameter of the gsxr forks?
As long as they slide in the triple clamps and aren't too long they'll work.
Possibly triple clamps interchange?? I don't know, but doubt it.
Spring rate is less also, as C10 mentioned.
If you need to change Springs, or fork seals, you're gonna need a rod guide case wrench to open the fork internals, after removing the fork caps.
That's a very expensive wrench too.
$250 U.S from Suzuki, and still over half that from the few places I've found that make them.