Carl,
Oddly enough, mine's from Fort Trenholm on Johns Island. The
fort was built in Sept-Oct 1864 and ended in Feb 1865, but
there was a plantation complex with 44 buildings there in
1825 and then after the Civil War it reverted back so my
site isn't one or the other. Thus far, no info on templates,
but one contact. Will let you know and I would be interested
in what you've done to extend South's typology, which was my
starting point as well.
Lyle