sway bar for 1964 C10

[rickf]

I have this 64 C10 short stepside, been in the family since it rolled off the dealer's lot. It's never had a sway bar (probably more correctly, anti-sway bar).

Are there any on the market considered better than others?
Any to stay away from?

I met a fellow with a C20 (a 1965 I think) in a field, with a mildly rusty sway bar. Would I be just as well off to harvest that one, or go for new aftermarket?

Thanks,
-rcf