Loading platform (belt) for excavators

P.S. I don't speak English very well, so I use a translator.
It won't be a secret if I say that mining ore is a Spartan task in this game. I recently started a new game on the most difficult map (large arc). And waiting for your equipment to move from one end to the other for several minutes is tiring. Sometimes something goes wrong, and the equipment with only sand goes somewhere where it is really needed.
So the slow process slows down even more.
I have several suggestions.
First, these are unloading platforms, augers, belts. This device is a belt or a hole in the ground (sorry). Any equipment can drop the load there and it gets on the transport belt.
This device can be used to unload the logistics link (Quarry>Excavator>truck>bunker).
If you use this device, the excavator can dump the contents of the bucket directly into this place, and through the sorter, the target material will be sifted out.
!!! The character limit has been reached(
But I'll add the rest later.

Excess substances can be poured out nearby by an elevator.
<<As you can see in this photo, workers are trying to assemble this device from what they found in the nearest dump. Help them :) >>
My second proposal is less interesting, but it is easier to implement. On the quarry control tower, I would like to see several functions.
Priority of the target resource. The truck that works in this quarry will deliver the target resource first, for example, copper ore, and then deliver associated resources.
This can avoid endless deliveries of sand to the glass factory.
The second point is the ban on the delivery of associated resources. All associated substances mined together with the target resource will be thrown into the nearest landfill. Even if they are required for production and there are priorities for delivery.
Thank you, I hope this has not happened here before.

@Welkrip [ideas] to get priority, use an Ore Sorting Plant and a dedicated output for the priority resource.