1632.(37) X 1366 Crop Mark for BMCC ?

Just adding crop marks in the center of LCD preview I would think it doesn't require huge firmware tweaking please correct me if I am wrong but just a simple crop mark woud be enough to help framing while shooting anamorphic even though you still end up with whole sensor image.
This option would be amazing help for shooting 3264 x 1366 with 2X anamorphic lens for 2.39 projection.
delivering stunning almost 3.2K RAW anamorphic format,
now this would make your BMCC future proof!
Simply by adding $400 Sankor 16C
Any thoughts from you guys or BMD?
Cheers
This option would be amazing help for shooting 3264 x 1366 with 2X anamorphic lens for 2.39 projection.
delivering stunning almost 3.2K RAW anamorphic format,
now this would make your BMCC future proof!
Simply by adding $400 Sankor 16C

Any thoughts from you guys or BMD?
Cheers