if you can find one, plenty of deck space rated to carry 10/12 people (dont know where they would all sit), solidly build, a nice soft ride and very capable in most sea states.
Its also worth considering the Osprey Viper nice and beamy and also well built and very capable.
The Avon Searider is also a great boat but has less internal space than others. Someone correct me if I'm wrong but 5 or 6 people on a SR5.4 would be a right boatfull even without the mutt's.
I think the best advice is to be patient, there will be a bargain along at some point, the question is can you wait for it?