I have a set of plans that were drawn by Donnie Francis. His company,now gone, was Wolf Pack Models. The plans are in 1/40 scale and there are 2 sheets. They were evaluated in Scale Ship modeler years ago and given a high rating. They are in great shape as I only used them for reference when I was building my sub.Only reasonable offers please. Or as they say in car ads,no tire kickers.My email is dlund50@teus.net