The drawings provided by 32nd Parallel are adequate but lacking in detail. I am trying to get more information regarding the sub's interior and exterior sail configuration. Thought I would see if you guys had any could links or reference sources on this particular U-boat (tons of stuff on type VII's and IX's, but the XXIII is a hard find). Does anyone make a descent scale static plastic kit of this U-boat, that I could redraw and scale up using CAD software? I have done this with several "work in progress models" that includes a 1/24 Elco 80' PT Boat and a 1/32 Perkasa (Tamiya's kit is awesome for doing this type of work).