If you are gonna go that far, just go build a new pyramid instead, and leave the originals intact.

Building a new pyramid replica, to scale nearby, would probably do wonders for tourism. Imagine being able to go into a pyramid, see it as if it was originally thousands of years ago.

Maybe purposefully leave parts partially built with replica equipment sitting out, toyr guides could describe how the tools worked and were used, demo lifting and moving parts. Have some examples of how the various materials were built.

Hire archeologists and artists to recreate hieroglyphs and remake them on the walls, using original recreation pigments so people can see how gorgeous they used to be before colors faded.

Tourists would shit out so much money for such an experience, and just build it a ways away from the originals so people can go do the tour, learn a bunch, them walk over and see the originals and marvel at them now with better understanding of how they would've actually looked back in the day, contextually, but also perhaps some newfound respect for the sheer scale of work it involved.

That photo reminded me of the famous attempt of restoration to the jesus painting some years ago.

But, we did straighten the leaning tower. It was leaning too far and in threat of collapsing so we spent a huge amount of resources straightening it just enough it wouldn't fall.

Just print out a large concept drawing or use vr. Spend the resources on people who need them.