Congrats
@rgrgoode on your new to you boat. When you get the chance share a picture of her with us. Welcome to the Forum, in general, and to the Oday Owners section.
Trailer boats have a variety of features some original, often others added by previous owners. There are logically places to buy OEM parts. There are also ways to build parts as good or perhaps better than the OEM designs. It is all about your imagination and interests.
While I am not a big user of galvanized plumbing on a boat, I did have a 1" stainless stern pulpit built by a specialist company that included seats in the corners at a cost of about $600. I would suspect there is a business in Iowa bending stainless to enhance the rails around all the pontoon boats that are made there. With a drawing and some measurements you could design exactly the concept you need and have them produce an eye catching serviceable stern pulpit to meet your needs.