I have a 1995 Hunter 336 and she's a great vessel. Spacious layout, good sailing performance, still in decent shape. The only issue I had - and you should thoroughly inspect that area - was a crack in the hull in front of the keel. This was definitely not because the PO had hit a rock or other damage, it was a construction issue of the joint between the two halfs of the hull. Relative easy glass fibre repair but still costly. The surveyor hadn't seen it because the hoist band was covering the area. Make sure that you can inspect the area around the keel.
Other than that - enjoy and have fun.
Andreas
