They were used in military equipment from WW11 into the 60's.
I worked on many vehicles that used them so there is no question in my mind of their durability.
If you were able to find every single component from a donor vehicle to match your application it may be a good conversion.
However, they are old technology and finding someone to work on them can be a challenge. There are so many later versions that perform well, are easier to install, and cheaper.
Fred