I went to your website to have a look at how you made the sails, just out of idle curiosity - and very soon after that found myself compelled to stop everything and devour the entire blog "Building Minimus ll". It is a well-written and well-illustrated explanation of a number of very interesting design and construction details, all worked out to make the job faster and easier.
Two things especially interest me right now. One is the way you built your masts. I never would have thought multi-skin tube was a DIY proposition - that indeed should interest many JRA members. And your mast-head fittings - that's a new one!
The other thing is the rudders. I would rather like to see a bit more detail on the rudder construction as I think swing-up rudders are a must for shallow draft, but it is difficult to find a simple way of making them strong enough for a boat that size, and I can't quite see how you have done it. Also I am guessing you have made a deliberate decision to use metal fittings (gudgeon and pintle?) rather than lashings. Not having experience with lashings for rudders, I was interested in giving it a try and would be interested in your reasons for not doing so.
Well done and thanks for the link to your most interesting website.