I do sail with a Mystere 6.0 that has Nacra 6.0 rudders on his cat. He loves them... i considered that but i didn't see anytone parting out a smashed nacra 6.0.
When i stated this .. my goal was to purchase 1 back up casting after finding a hair line crack in a casting. I tried to get it welded (repaired) but they guy did a horrible job.