I have read with great interest that Tom MacNaughton is designing a Penny 20 http://www.macnaughtongroup.com/new.htm
I wrote to him to hear how far he had come with the design,and he answered.
Dear Carl,
You should be able to buy Study Plans in a few weeks. We are working out the Concept Drawings and an "Article" on the drawings. The only difference between these, when they are done, and complete Study Plans is that the Article at this point not only describes the design, but also has a lot of information that later will be moved to the drawings. Things like block sizes, suggested sources and so forth. It will also probably not have the "evocative" section that I normally tack on the end which describes the feel of being aboard her and sailing.
I'd say email me once a week and I'll give you a bit of a progress report. Then, when we have completed the Concept Design, we will be happy to sell you Study Plans.
At the moment I am detailing the rig on the Profile and Rig sketch. I have the source model for Perspectives of the hull lines done and we'll be producing several views of that once the Profile and Rig sketch is done. During this process we've worked out quite a lot about the Accommodations Plan. Tick marks on the Profile and Rig sketch show where cabin soles are, where bulkheads are located, and the height of major items like counter tops and bunks, etc.
She has a remarkable amount of room. Rather more than I thought she would. I thought of her as a minimum liveaboard voyager for one person, with the option of a visitor. I think now I would eliminate the word minimum. The only major thing she doesn't have that you'd see in a larger liveaboard is a dedicated "office" space. I'm keeping that in mind when I design the interior as it would be nice to have some provision for comfortably using a laptop computer for extended periods so that a person could write articles, update a web site, or whatever. For someone accustomed to working on boats there might be room for a tool box of hand tools which might aid a sailor in getting work at boat yards and boat builders along the way.