J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Handrails

I'm about to order some custom stainless rails. Joe (who I met on this list) ordered some using this drawing, which is based on measurements he took.

My question: are all of these the same? Can I reasonably expect that handrails on J/30s are interchangeable?

Hope to make this a 1-boat-trip project (my usual story: 4.5 hours to Charleston).

thanks - dan