By the way what type of oil you use on propeller tube for impeding water to
Good to know!I think everybody has own solutions, mixtures of engine oil, kerosine, silicone oil has been used, but normally I use usual car engine oil and have been satisfied. Grease or vaseline should not be used, it is too stiff in colder (water) temperature.
The photos are taken inIf your build all works out good, maybe you can share your design files for others to build a like boat for themselves.
Always nice to share ideas and designs with others, if no legal issues are involved in plan designs.
Where were photos of original boat taken, I like the shop doing repairs, looks like work on old military landing craft as well.