Skilled paid stonemasons were required to build the tight fitting surface stones of this one, so some of the laborers were definitely not slaves, howeveri believe you're correct I doubt the sled drag team was salary.
By all accounts the builders of the pyramids actually had nice places to live, and a higher quality of life than most Egyptians. In truth there is literally no evidence they were slaves outside of the story of Moses.
Ah, going the George Bush route that the absence of evidence is not the evidence of absence. So, let me tell you about the unicorns on Mars. What, you can't prove they're not there.
Seriously though, we do have quite a few records from then since the Egyptian kings really wanted people to know about them. We also have archeological finds of where the workers lived. Also in them being given lavish tombs that regular Egyptians at the time didn't. This stuff is really not hard to look up.
It's not like any other country was that keen on building pyramids, like ever. Which of the cultures and/or races they enslaved would have experienced pyramid builders to boot?
Even in Egypt, building pyramids was a very niche hobby.
I dunno, I wasn't around. We have records of different "levels" of slaves in Rome (2000 years later) so it's possible.
Then again, I think the Nile was the only river providing so much bounty that all the labour could go into such large projects. Obviously Mesopotamia was doing well at the same time, but I don't think they were doing the same level of megaprojects. BUT, my view is biased I'm that I'm not really aware of sources before about 500BC, so there could have been other megaprojects that didn't survive.
Regardless, I would estimate a hierarchy of builders and labourers is highly probable for the pryamids. The level of compensation and agency for each of those levels is something I don't think we know (though this may be my personal blind spot).
I would be surprised if pyramid engineers/architects were allowed to leave their project sites or find other work. But that's me placing my modern state and strategic lens on a important ressource.
If you want to be remembered forever, a Pete's Pyramid is the only way to guarantee you and your slaves will be entombed forever. Our Ra-proof quadruple slope technology is perfectly aligned with astrological precision to make sure all your worldly belongings make it to the next realm. Ask about our embalming subscription package to keep your organs in the best shape possible.