Are you in Canada or the U.S.? If you are in Canada, you might want to consider a Mystere, since they are manufactured in your neck of the woods.
The Mystere 6.0 has more buoyancy and freeboard than any catamaran its size. And I think the Mystere 5.7 does not even have daggerboards, which is an extra easy factor.
(I think I'm right about the no-board thing on the 5.7, aren't I? If not, somebody correct me.)
Yes you are but I think that could be an old Mystere S with no boards or maybe you were thinking of the Nacra 5.7 Mary. Jim does this matter if you are spending Can. or US. currency? On Catalist website there are many boats for sale as was already pointed out,that newer Mystere 6.0XL with the tilt trailer sure looks sweet also if you are kind of not used to cat sailing and wanted a 20' boat the wider versions I believe are a lot more forgiving in a puff. Mystere 6.0 has got to be in the runing for the title of 4x4 of catsailing with the remote centreboard adjustments,shear volume, racks, wings,front tramp and carrying capacity. Good luck Bob G.