10" operator for this old casement window

A home owner from Indiana, USA says:
November 25, 2022
I've read other posts that when the worm gear comes out you can't replace it. That's what happened. so I would have to install a new operator. Is there one available that would work on this old window? The arm that extends out is approximately 10" long.
Let me know if a better photo is needed.
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Casey from SWISCO responded:
November 30, 2022

Hello,

Take a look and compare the specifications shown on the 39-216 and 39-217 product pages to yours, which are compatible with the 39-107FK handle and cover kit. Thanks for posting! 
Single Arm Window Crank
Single Arm Window Crank
39-216
$40.39
Single Arm Window Crank
Single Arm Window Crank
39-217
$40.39
Truth Folding Handle And Cover Kit
Truth Folding Handle And Cover Kit
39-107FK
$15.45
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