and by the way, you should be generous on the slope,

its angle. you'll save money steeper it is.

and i'm sure the engineers will make it so that

it is functional at that steeper angle.

but. this is a monumental scale - there are factors

- unknown ones to consider, and the maintenance

that follows as well. it will be better to have

more space within and out. not just for the stability.

but for its longevity. so be generous.