Paul,
Have you got a pic of the inside of one of your Vintage Wheels, also, if you have, the distance from the mounting face and the "spokes" (i need some caliper space), and the overall spoke thickness, i'e front to back.
Spoke with Vintage Wheels and Team 3, i need to loose 32mm a side to fit the front wheels and maintain the current wheel to guard distance (3/4" + 1/2" for knock off flange).
VZ hubs, taking out 32mm might be a trick, there's only 16mm between mounting and wheel flange.
