Nice boats!
I am currently wondering whether to do a straight shaft or make my own hardware (flex shaft). I will use the straght as a backup if (or when) my setup fails, assuming its not in the middle of a lake
here are some pics of progress - got back from work today late so couldn't get much done. hull weighs 80g so far without electronics - they are just a mockup in the picture, not the real ones that I am using.