Kev,
First let me say, that this is a Great Find!!!!!! And Good Luck with her whatever you decide to do!!!!
When I saw the picture in your first post, I said to myself, "self, that is an original dolphin fairing."
I only saw one actually on a bike back in the 70's, but always thought it was really cool.
I don't believe it's a Vetter type, I just can't remember what company actually built the one you've got, but don't let it go or get damaged!!!!!
It's almost as classic as the sandcast!!!!!!
Are you in NJ? If so, I'd like to meet up with you.
Charlie
PS: I'm gonna try to find the fairing maker unless one of the other guys knows who made it.