There used to be EMSA (Eastern Multihull Sailing Assn.) over that way, but it looks to be defunct.
Keowee Sailing Club (
https://www.keoweesailingclub.com/) has at least one multihull regatta per year.....they may know of some Hobie folk closer to you.
I know that there are recently active multihull sailors around High Point at Oak Hollow Sailing Club (
http://www.ohsc.us/). I see that you also posted on
https://www.thebeachcats.com/. Try PMing leeboweffect over there....I think he's an Oak Hollow guy.
I'm bettin' somebody knows somebody who can help and is not too far from you.