Hey, Mustang - I'm posting a reply for two reasons: I know these boats fairly well and your user name is one of my absolute FAVORITE songs! Was the theme somg of a blues group I used to play with!
PP40/41 is a great boat. Strong, comfortable and forgiving. Close friends of ours have been living aboard for several years now and they love their boat. Only problem I know of they've had is a chainplate let go two years ago under very nasty conditions between Grenada and Carriacou. They replaced it with no problems - and went on to replace all the rest while they were at it ... not unusual in a boat over 20 years of age!
Great layout for liveaboards - solid and comfortable. They are a bit underpowered, however - more engine would be good if you are planning to be in an area where motoring/motorsailing will be fairly frequent.
If the price is right and she's in good shape, buy it!