Hey @jharris3600. Thanks for pointing that out. I did get things a little jumbled up there! I was trying to say that you might be able to achieve this in combination with a Retrofit kit.
So @rrounds, to clarify, you would need a Spare Parts Kit, Corner Kit and a Retrofit Kit to achieve a 45°. I should have articulated this better and I apologize for the confusion. This method will be a little more costly and might not be too ascetically pleasing. It will also require a little bit of ingenuity! Alternatively, you can use the Doorbell Wired specific Corner Kit, but you would not get the 45°.
Again, I apologize for the confusing information. I was trying to use out of the box thinking to provide a solution that might work for you.