Hello, All and @felterco.
I would like to point out another external window mount that can be printed from the results of an excel file. The excel sheet only needs 4 camera-related inputs and generates the contents of an STL file. The resulting 3D print is simple, compact, and sturdy. Its backplate has ample surface area for command tape mounting.
Here is the link to the earlier post Spreadsheet to 3D Printed Ready to Mount DogLeg Bracket
Below is a picture from the link above
Victor Maletic