Hi Spittfire
Don't know if it's the same chap you are looking for. I know there is(was) a Sam Joannides In Port Elizabeth, owns a very nice 182. A great guy! If you contact Algoa Flying club I'm sure they can put you in contact with him. Last saw him around about 2 years ago when I was last there. He had a business in town so he could still be there.
Good Luck
EW