Mike,
here's a link to Russel's site.
http://www.russellperformance.com/
I have a Aeroquip catalog and there is nothing like that in it. Of course it is a couple years old.
I do know where you will probably get all the help you will need with this. Chevdog, at Chevytalk done this to his 57. He gave me a link to the site he used to buy his parts from, but damned if I can find it.
Anyway, go to the Tri-five forums or search for him and I bet he can help you. He is a real nice guy and would jump at the chance to help out.
I'm not quite sure by your description what it is you are wanting to do. But, you know they have AN tube nuts, right? Well, I say AN, it's actually just tube nuts which have been anodized blue or red. Anyway, tube nuts simply go over a flared tube and fasten to fittings like any flare nut does. They have pieces, not sure what they are called, but they hook to the braided hose and have a flare end for the nut. Might be what you are needing. But you did say it needs to be a hose barb on one end, so maybe not.
To tell you the truth, I've never seen a hose barb/inverter flare fitting than I'm aware of.
Good luck with it and please let me know what you find out. You talked about me once for not replying to your posts, now look.
