Sure, if you can get a nice deal on ebay, then I'm all for it.
But from what I've been told by several suspension specialists, the shock is under-sprung for a sportbike. At least for the track; and I'm only 175 pounds, suited and booted.
I've put .9 kilogram RaceTech springs and compression kit up front. May do the rebound later (didn't know about the rebound kit back when we did the forks). And raised the forks 10mm to compensate for the soft shock. BTW the shock is at the stiffest setting. Suspension people look at the preload as low speed damping and the compression damping as high speed.
So if I had to do it again, I'd look for an Ohlins on ebay first.
Or leave it stock and get a $2k-$3k track bike.
It's good enough stock for street riding.
If you're after looks, then no one can argue about upgrading to USD forks.