Hi Simon, just did some catching up with this build. Amazing job mate, looks awesome, very inspirational.
How is your left hand after using that Shinto rasp so much? I know my fingers were almost raw after my sessions, and that's just working on pine. Yours would have been much worse working on harder timber.
I also liked the Timbermate tub sanding as well. I have an assortment of off-cuts of PVC pipe and pieces of dowel of different thicknesses to help with my sanding. "Necessity, the mother of invention."