Welcome to CSC mangiamarco.
Check out Mark's Custom 20' in the below link. He too was a fly fisherman. His custom TTop , Console and Fly Rod Racks were constructed by Wildfire Marine in Stuart, Fl. I think Mike still has the mold and he could make you one.
Good Luck with your redo and post some pictures.
http://www.classicseacraft.com/marks20/index.html