I HAVE A GREAT TRICK TO GET ENOUGH ADEPT BUILDERS FOR BUILDING THE STATUE!

All you do is leave as many building puzzles as you can until you need to train villagers as builders - don't uncover the roster of the dead, don't sort out the rubble patch, don't build the bath. Only build huts so you can increase your population.

THEN when you have a lot of villagers, say when you get to the 35 limit of population, then put them to work on one of the building projects.

Set the persons detail to builder, then put them on a building project until it says they have improved at construction then STOP THEM and put them back on it. This way the building project doesn't get completed (so you can train as many as you like without running out of projects) and it's an easy and quick way to train builders.

This way you'll have plenty of adept builders to complete the statue! After that you can complete the building projects because you'll have plenty of builders!!