[mickmate]

Mark, it looks like 10.9" on the front lower a-arm. I will scan in some birdcage detail for you and see if it looks like it will work. PM me with your e-mail address.
Alex, Vintage are super product, people and service. You won't do better. With the aftermarket wheels like Vintage and the bigger backspace looks like your track is close. Try setting up wheels to that spacing inside that body, you may find the body is a little narrow (though I hope not).
I hope I didn't scare off dashbac.
cobrashoch don't build us up on building your own frame and not have any pictures for us to look at!