Quick update:
I ended up buying the plane for a fair price (at least I hope so), after the pre--buy at Henry Weber (Lancaster, PA). Converted the per-buy into a two-months-early annual that took longer because of a crack in the Power Flow exhaust that went down to Florida for repairs and ended up being replace for a new one. it should be ready sometime this week.
Otherwise the plane looks nice, no corrosion, engine looks good with clean oil analysis, no fuel leaks, new pucks and tires. I'll finally be starting my transition training by Friday, and I can't wait!
About Henry Weber, I couldn't be happier. They have been very thorough, not minding my biweekly visits to the plane (feels like visiting your child at the hospital), and my endless questions. They seem to be reasonable expense-wise, and I'd be happy bringing the plane back there for future annuals.
Ownership remains daunting, but there also seems to be a real community that is rare to see outside of aviation.
Hope I am as positive a few months from now...