The on site participatory cooking of the agar-agar is an integral part of the project.  I need about a week for this. The ants are harvested locally using sugar-traps.  

I am currently thinking of a map of Buenos Aires of about 300 x 300 cm placed flat on a table
or trestles. 

The gel and the ants attract insects and other vermin. This must be taken into account when
choosing the location.  Semi outdoor-indoor is ideal; in any case protected from direct rain.