A curious build

A dynamo system for a 20″ wheel bicycle. A standard dynamo would not work with a 20″ wheel – there would be too much drag, so a specialised option is needed. There is an expensive SON available – the SON XS. A few issues with this (apart from price) though – I think it’s ugly, and I don’t like the semi radial lacing. I also wanted to match the existing 20 spoke 2x pattern for