Robert- I found two resources in Buenos Aires, Argentina....Originally Posted by roteague
One is a camera shop, the other a photographer with a rental studio and darkroom.
The store is : http://www.centromayoristafoto.com.ar/
They have film from 35mm to 4x5, and they carry a range of cameras, darkroom equipment, and lighting.
The photographer is Diego Lapiz, who rents out his studio and has a rental darkroom available - http://diegolapiz.com.ar/fotografia.htm