Specifically I have not trialed the 52, but been on one, and trialed multiple P50.
All boats I viewed were totally sound. High spec build, which stands in good stead regarding build ,
Positives - classic high speed high quality boat.
Negative- nearly every boat I seen the gloss as wood is milking, but this is true of most boats. Easily sorted during light refit works.
I had new floor finishes, doors and usuals to bring boat current finish standards.
Pershing imho is a very sound boat and as it was a high end boat in class, remains so.
Keep us posted as to your progress!