For Indonesian guests, it will be good to get Elephant Gypsum Institute fully ready and operational, with TV videos and water “cascade” of the wet area wall.
Class room should be prepared as a meeting room, with tables set in U or Square shape, with overhead projector ready.
One local support would definitely be needed and appreciated at EGI. Considering all meetings/talks will take place there, having Tea/Coffee/Water plus some cakes /fruits will be good as well.