Done, put a fork in it. If you're blowing oil out as you described, then the damage is already complete.
Follow Tech's instruction to determine where all of the damage is. And it sounds like you'll be in need of a set of pistons, rings, bearings and gasket set.
The upside is that if the motor is fresh and built to correct specs, then you'll easily get by with a hone job and the parts I described above. But before you start it up and run the snot of the repaired motor, you need to fix the tune that caused all of the destruction (yes, the tune up that's on it now is what caused the issue.)