The time to save is now. When a dog gets a bone he doesn't go out and make a down payment on a bigger bone. He buries the one he's got.
The sea heaves up hangs loaded o'er the land Breaks there and buries its tumultuous strength.
I have never had trouble with any actor being able to visualise things. They are amazing. As long as you have your monster head on a long stick so you can hold it up there and you can wave it around and let them see it and explain it to them they are just great.