OK, we got the axle from Colin. It is pretty and the vertical style shock mount is welded on there. It never looked like the original to me...but he knows what he is doing.
Long story short, the Caravel
owner's father-in-law is doing all the work, I am consulting and offering help where I can. I figured to make it idiot proof, we would order from Colin.
Please see the drawing. The top illustration shows that on the original axle, from center of the end of the axle to the center of the stud on the shock mount was 3". On the new axle, that distance is 8". Something seems fishy with a 5" difference. This throws the geometry off, we are guessing, thus some kind of reconfiguration will be necessary.
We bought the recommended shocks which match the originals exactly in compressed and extended length. We understood that new holes would have to be drilled to mount the new axle as the bracket is shorter than the original, but seriously...why is the shock mount length different?????