Hi Rokket, I'm sorry. I meant to answer that a while back, and forgot. Old Timer's disease, you know?
Anyhow. Once again, Floating drydock, is the place. If you want a North Atlantic sail (Big square sucker), that would be USS Bang (SS-385). If you want a Portsmouth step sail, go for USS Tirante (SS-420).
If you need pictures, let me know what type sail, and I'll send what I have.
Just for clarity, there are 4 basic sails, EB Step, Portsmouth step, North Atlantic and Guppy III(longer North Atlantic). But to use the Guppy III you'll also have to Guppy and lengthen the hull.
Ask and ye shall recieve.
Mike K.