Hawk Sport w/bearing kit
Then I would suggest that you get a new Hawk Sport ($160) with the CNBB1001 bearing kit ($22). Now with everything bearinged the heli will fly even more slop free then the Rav30 (The Rav30 does not have the bearings in the bell mixer arms and the washout arms), and stay that way for a long long time, you will get a 10mm mainshaft heli etc. and your Hawk II can supply "crash parts" and others(blades, spindle, flybar,blade grips, lower and upper sideframes boom and many others).
For only $182.00 you will have what you want plus a very complete crash kit (your old Hawk II).