A little more progress over the last few days.
To start with, here's a chain tensioner or axle adjuster/supplementary hold-down.
Axle adjuster 01.jpg
I guess it doesn't need much explanation. It ought to be pretty clear how it works.
Axle adjuster 02.jpg
And I managed to finish the front fender framework. Well, no, it's not quite finished. I still need to fasten the fender to more points on this framework.
Front fender framework.jpg