Update: we bought her!
She's needed some modernising, but then most 30 year old boats will do. After 8 months and roughly 1500 miles in various weather she handles well and enjoys the bigger seas (certainly more than me at least!). Accomodation is comfortable with tasteful wood work rather than the plastics and lino so common in modern boats. Hull is a decent thickness so she's stable and the rounded design of the hull forward means she doesn't slam into waves like flatter nosed boats are prone to.
All in all a decent boat compared with others available at a similar price and certainly very comfortable for long-term cruising.
Dream like you'll live for ever ... live like you'll die tomorrow ...