Ammeter Bypass a Must?
Replace it all! Wiring that is!
Always carry an extinguisher!
I feel pretty Damn confidant for another 40 years or so! Like said pure 99% stock and likely easier on the electrical with a modern ignition. Enough LED inside to reduce the load without making it modern!
Take a minute to read the amps for each lighting circuit you have! You will be Enlighted!