Here is the AGD Drawing. I got it back when I bought my blem pumpmag parts from AGD's Attic sales. Im assuming since they posted it for everyone back then that its still ok to post now. It seems to have been lost where ever it was origianlly posted.
I used that drawing as a guard and bent a rod out is a coathanger. Its been 10+ years and its still going. I wouldnt change it for anything.
Anyway you can get the material from McMaster.com
http://www.mcmaster.com/#drill-rods/=nmvs7i
You will have to pick the right size & such in order to pull up the correct stuff.