Sorry.. I mean 6000 Large Gold Duccats

With the original concept of the 12 apostles in the pendatives and decoration across the barrell vault, pope Julius II was to give michalengelo 3000 Large Gold Duccats. But i think once michelangelo revised the plan to what we see today, Julius doubled the price and paid him a bit more on his deathbed as well a few months after its completion. Something like that.

R.