68' pickup ignition switch

[dillfarmer]

During the replacent of an ignition switch (dash mount), the threads in the collar, that hold the switch to the dash got damaged.
I believe the original was cross threaded??
Is there a place to locate a replacement collar?? Or maybe someone who could chase the threads?
It required some tapping on the spanner wrench notches (I don't have the proper wrench obviously), to get the collar removed.
And advice??

Regards....