Nice Yacht!!! So her real name is Tusitala not Defiance but she certainly has the defiance ethic about her and a very good example in fiber glass. There is only one "Defiance" and lydia is looking after her.

I would be busting the price plenty. A set of squabs for the cabin could cost $5k for quality comfort.
The Bukh probably needs some boat bucks and the way I see it regarding universal joints on drive shafts, the one connecting the engine to the prop shaft is 90 degrees out. Hopefully this has not flogged out the stern gland, stern bearing or P bracket.
Might be worth it to somebody to race on Sydney Harbour but I reckon she needs $10k or more spent before cruising off shore.
IOR stands for International Offshore Rule and there is no way she complies to any offshore rule currently.