RE: Now what?
Parts should be no problem for any of the Hawk models. A lot of the parts are the same between the Sport and earlier versions. I crashed my Hawk II last summer which prompted me to get the Sport and I kept the remains of the Hawk II as many parts are the same. The Sport has many udpgraded items from earlier versions including a larger main shaft (10mm), a metal/plastic swashplate instead of the all plastic swash on the Hawk II, all metal replaceable balls instead of the molded on plastic balls, etc. And I've never had problems getting whatever parts I needed from Century.
Regards and good luck,
Mike