Points- You clean and use what you have.
Oil- a lot. Fill in the spaces of the missing metal.
Gear oil- John Deere Corn Head Grease or Lubriplate 105
Search You Tube for 1939-41 Cub Mate Coil Substitute
only use the 2 cyl. military surplus coil and ground out
one spark plug lead.
I have limited internet access just now.
Can provide a better response in a few days.
Tubs.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.