Unless you want this to be 100% original, I'd install a 41 handle with lock. Good rust free doors are hard to find.
I'd still look at all the differences between the 41 to 46s to make sure you have a '46.
Best of luck
Jim


It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed