Cost pyramid and is it free?

How much costs the new pyramid to reach level 25? I have seen it somewhere that it costs 750.000 but that is so unfair, because you must buy the premium pass and you must buy all the buildings from the album to receive 150.000 extra shovel coins. That is impossible with the combination of buying first all the coins in the temporary shop ( for example the tower of Caïro wasn’t possible without buying something). So can people who doesn’t buy something reach level 25 pyramid?