I use my surf & pier tackle here in the Santee Cooper lakes for catfish, so I would say yes, if the catfish tackle is similar. As for the circle hook sizes, I'm sure that's going to depend on what you plan on targeting. I'm more interested in smaller eating size catfish, most under 10 lbs, so generally use 4/0 or 5/0 circle hooks. I have used larger & smaller, depending on where I was fishing.
I've never fished at either one of those piers and last pier fishing I had done was years ago at Holden's in NC. We used fairly light tackle there, catching mostly Whiting and Sand Perch.