Good point Pete,
George Petrus has a shop in Torrance. His website is here:
http://www.kitcar.com/amp/home.html. He build great custom stuff, but at custom prices, too. Outboard brakes, Watts link uprights, great stuff. If you can afford it, that's the way to go.
Kurt Hamiliton builds Cobras and has a shop full of old Jag parts. If you want to make stock Jag setups work, he will mix and match your parts and his to get you what you need at a reasonable price. He know all about preloads and clearances, bearing sizes and what will work and what will break.
Good luck,
Paul