Front end conversion

I'm fitting a gsxr 600 k4 front end in my sv. I've used srad yokes and front wheel. Everything fits ok I've had to space the calipers out. I've used a k4 spindle and a srad wheel. The spindle and wheels floats either side though until obviously you tighten the pinch bolts. My problem is though how do you no if or when the wheel is central? Has anyone else had this problem

[Bibio]

is the front end a RWU or USD?

the trick to the spindle is the spacer/nut goes hard up against the fork leg/knuckle then you tighten the outside pinch bolt for the spacer/nut. once you have done that you then tighten the axle then you bounce the front end up and down a few times to settle the fork legs so they are not 'squeezed' then you tighten the other 3 pinch bolts.