I have just purchased the drawings for a 520 Duo. I live in Rotorua and my closest harbour is Tauranga. I think you sail on Tauranga and I liked your 480c. I have a mooring in Pilot Bay currently leased out. I bought
it years ago with the intent of one day being in possession of the time or money to put a catamaran on it. I am nearly as old as Bernd (79 this year ) and think I may be running out of time. The 520 is not very spacious and though I am confident that I could
build it I have been looking at the 750 which is bigger but not impossible. My partner and I have previously owned first a Raven 26 then a Young 88, we both enjoy sailing.
I wouldnt have thought this design would be the best choice for a live aboard, even stretched. Theres only the nacelle for any real living area. Bernd will reply better than me but I recall looking at the drawings when Bernd first came out with this one as
I do with all his new boats. Other small parts of your questions: the boat is trapezoidal so it is not asymmetrical hulled. It certainly is an interesting boat. Good luck
