i’m sort of noob around here....but i didn’t want to leave you hanging ....as i reckon this forum has got too many unanswered posts/threads.
my advice, as in the control plate is such a rough hardware matter...with no electronics involved....would be just drilling your own.
Are you any good with power tools ?
it shouldn’t be too hard.. and you might be able to customize it a bit more to your liking.
sorry if i wasn’t of much assistance, concerning the “Where can i get a replacement?”
cheers