No problem.
This video below shows a fair amount of the prep for one.
The amount of work of course depends on the size and whether its a purely foil one (the individual squares) or a surfer (big flag type thing passed over heads).
You can either project and trace imagery or use a grid system and plot from that. The video above shows the grid system.
A starting point is having the stand seating plan in really high detail and then being able to position the imagery and materials onto this.