What is the lowest cost technology for building another Pyramid of Giza from stone?

It's a fun idea:

If we had 1000 000 dollars to spend on building a new pyramid 100 or 200 meters tall in a barren wasteland somewhere in America, Australa, or Kazakstan, in a climate that would conserve the stones and where arable land wouldn't be affected...

Is it possible to build a new pyramid of Giza for less than a million dollars, using solar power and robots?

It's a challenge that is very interesting because it may actually be possible with good engineering.

The idea is to have robots that can physically stack a very simple shape... equal sized blocks one on top of each other. it starts as a small pyramid with only 20 stones, every stone is for example 500 kilos, one half of a ton.

The project would require two robots, powered by a solar power docking station to refill their energy.

The quarry work would perhaps be too complicated for a robot to do. preferably, a qarry robot can simply cut a mountain into blocks and bring the to the pyramid site. Perhaps it's possible with very simple strata of geology, who knows.

But the stacking could be easy, for a robot to do on a flat surface. The robot has to have some kinds of caterpillar tracks for climbing up the pyramid with a low center of gravity, and stacking every stone with precision.

Every day, if 10 stones were stacked, that would be 3560 stones per year...

A relatively futile but fun engineering challenge!