Ya. I have a 1974 10M that we just completely stripped and refitted. Someday I'll post photos at www.renegade-cruisers.org
Mine never got the chainplate knee retrofit with aluminum boxes to the bulkheads. I toughened up the area with west system and biaxial glass, but it is a weak point, hence the recall of 10M's years ago. Apparently at least one 10M lost its rig due to failure of the chainplate knee.