I am surprised that Marine Weld have a jig for the pulpit, given the variation in pulpits that you see on SeaHawks. However, they certainly had drawings of a good number of parts for a SeaHawk when I had my tabernacle made by them. That didn't stop them producing something that was nothing like what I was expecting. What I got was something altogether beefier than that which is so common on Moore's built boats.
It amazes me to realise that it was twelve years ago that I had mine made. The stainless steel still has its near mirror-quality finish.