Advice for large Photogrammetry Job

[ApexxAviation]

Hi everyone, I recently accepted a job for a mine where I will need to capture the volume of specific mine dumps (piles of rock and dirt). The mine dumps are spread out across of the side of a mountain. Im afraid the mountain slope will be too steep to to access and use GCPs. Im thinking of upgrading/renting a Mavic 3 E with RTK and a base station for this specific job. Im also worried about the vegetation and slope of these piles. Any thoughts on what would be a good set up (Drone and Software) to successfully capture these?