Center link problem

[sb69chevy]

Hi to all...haven't been on here in quite awhile and need some direction from the pros on this one.

Took the truck in to be aligned and they found some issues:
1. Apparently, the center link has been wallowed out some by a loose pitman arm. Are these reproduced? If not, how do I fix this?
2. Need lower control arm shaft kits.
3. Need new pitman arm.

I realize #s 2 and 3 are readily available, but #1 has me concerned on where to find it.

(69 chevy w/ ps and 5-lug conversion from 71, I believe)

Thanks in advance for any input.