'37 Ford windshield crank

[Track T-4]

I am installing the windshield crankout handle in the dash but do not have the part that holds the handle in place. Perhaps some kind of split ring? What is used? Is the part available, if so by whom?

Also, the shaft that the handle attaches to is high in the opening. Can this be adjusted? I'm a little reluctant to try prying it.