DSLR camera mount RTK adaptor for photogrammetry

Hello I have a project in order to capture a wall 600 meters long (archeology) that I can not fly a drone and I would like to capture the wall with terrestrial photogrammetry only

Until now i do photogrammetry projects combining data from UAVs, laser scanners and terrestrial photos from DSLR in software like Reality Capture and Bentley.

Now I was thinking to use only a DSLR camera with some control points and mount in my camera that adaptor https://www.redcatch.at/3dimagevector/.

Anyone use it before?

My thought is to do the triangulation faster and better.

That company has two models one with IMU 3dimagevector and another only with rtk.

Is IMU necessary for terrestrial photos?

Any other suggestions or a similar system like the above?