I'd look seriously at a Bonanza A36 for what you describe. Nothing beats them for interior comfort, space and all round ability. you could be looking at an early 90's model with a bit of hard bargaining. A real 4 person IFR tourer with the ability to lift 6 if needed, or loads of baggage space if not. First class build quality. Looks timeless, will age gracefully and there are loads of enthusiastic owners about who'll be on hand with helpful advice. The American Bonanza Society is a particularly good starting point.
Above all else it's a buyers market. Take your time and enjoy the search!