1959 to 1964 Impala Lower Control Arm Dimensions

I'm upgrading the control arms on my 37 Buick so it has ball joints.
From pictures the 59 to 64 Impala looks like it may work
1) Does anyone happen to have one of these models (or the lower control arms) that they could take 4 measurements for me?
The attached sketch has the measurements I need.
Thanks

 

Dimension A: 12 3/16"
Dimension B: 9 1/2"
Dimension C: 15 3/8"
Dimension D: 9 3/8"

Hope it helps

 

Thanks very much for your help.
I've been having a tough time acquiring this info.
Are the springs centered from left to right, I if not then how far off from center are they?
Thanks

 

Let me take a pic give me a min.

 

This is the driver's side lower control arm, viewed from the top down, front to the top of the picture. Spring pocket is offset forward in the control arm by about 3.5"

 

Thanks very much.
You've been a huge help

 

Not a problem.