Yesterday, 2:25 PM · 16 replies and 383 views.
I reckon this is surely not how Planetary Mining would work.
--> Planetary Collectors :)
After having surveyed the general area with the Mineral Surface Scanner, the automated MRVs (Mining Recovery&Deployment Vehicles) placed your desired amount of Extractors on the Planet.
Then, after they're full, you deploy your MRVs on the Ground to collect them again.
All problems solved, fairly easy to implement, commercially viable (time vs. income balance) and we got basic Planetary Mining going :)