Just took in what looks to be original standing rigging on a Pearson 40. Our shop is replacing all and the hydraulic backstay, vang, and manifold. If you need rigging dimensions let me know.
Here is the spreader connection very interesting how the 40 uses split cap with diagonal/mid from spreader, reflects element of BnR rigs we see.
My Peason 30 is wonderfully simple by comparison. Best, Tim