The amazing luck continues...spoke with Chris from Airworx this afternoon. He already has the engine opened up and says there's essentially no damage. A few things to clean up from the shaft exiting, and he expects to have it back together next week! He doesn't screw around. Sounds like the prop will be the hangup now. I opted to have it overhauled as it hasn't been off in 20 years, and I'm a little concerned about there being something in either the prop, or more likely, the governor, that precipitated this. Prop shop says about 6 weeks, so unless they condemn the prop for some reason I should have her back by mid April, which is WAY better than expected, and will leave enough time to get some good hours on her before we take off for Badlands/Yellowstone/Tetons in June.