Control arm threads for bushings?

[mcmlxix]

I am getting ready to rebuild the front end on my 71 C/10. I bought a used set of all 4 arms from Mothertruckers so I could sandblast and paint them without having to tear the truck apart first. My idea was to preassemble the arms for installation.

As I was blasting and painting them I see that the threads in the arms are somewhat worn. I dont know how well the end cap bushings for the shafts will thread into the arm. Also, where the end cap tightens down on the arm, the metal is worn at an angle. Not bad but not 100% straight. Its as if it was worn or overtightened. I filed them smooth but I am concerned about it.

For anyone that has rebuilt their front suspensioin, is any of this going to be a problem? I am going to try and test fit the shafts this weekend and take some pics... I searched the board but none of the other discussions addressed these issues ...
thanks