I think the hub is great idea! (mostly because they would fit on my Hurricane too!
) The adapter could be made to press in to the T-Bird knuckle.
I tried to find someone who made them a little while ago but came up with nothing.
If made in a six pin, there would also have to be a front hub made too and I'm not sure how that would work with their spindle/brakes. I'm not that familar with their spindle. I couldn't find any hubs for Mustang II either which Hurricane uses but FFR uses later Mustang. Not sure if they are the same or not. Otherwise a five pin adapter would have to be used on the front.
Of course, the big question is going to be "how much".
Larry