[Bruce_Sailboatdata]

William Garden’s book “Yacht Designs” © 1998 by Tiller Publishing has several pages on the Porpoise. These include drawings and, while hard to read, sail dimensions.
That said, it is never a good idea to have sails made from dimensions found in a book. For best results, measure your boat’s rig yourself. Or, as psk125 suggests, contact a sailmaker.