Mark,
As an A&P/IA that knows Twinkies well, hence can do a good pre-buy and am in a position to fix surprises more cheaply, I would only be interesting in buying such an aircraft for my own personal use, provided I was planning to keep it for a long time and got at least 20% off on the price. If you will have to pay a shop to fix the surprises, then I would say 40% off.
My problem with this airplane as you have described it is that it sounds fishy. I would be very worried that the plane was inundated. I would also be worried that the annual that was done did not properly verify the status of the AD's. A number of them you really need to know what you are looking at to tell if the AD has been complied with or not. Most mechanics do not have sufficient Comanche experience to know.