Hey, I'm doing some work on my old 89 Ninja 600. The rear shock is leaking fluid all over and needs to be replaced. I understand it's near impossible to rebuild an old gas shock and aftermarket ones are prohibitive in price (like 5-600 bucks!) So, I'm looking at scrap bike shops here in Calgary and was wondering if the shock for the later (mid-late 90s) ZZR600s is the same? Any info appreciated.