I looked into doing something like this for my 56 Dodge. I thought that the ford setup seemed clunky and modifying the width of the cradle created complications. I dont like the inboard brakes on the Jaguar setups that much. Corvette C4 components seem to be about the best option.
Here is a link to a real nice setup 57 Chevy from the tri-five website that can give you some good ideas on what can be done. There would be a fair amount of fabrication involved but its is doable.
http://www.trifive.com/forums/showthread.php?t=30205 Scott