wad2k

Can someone point me in the right direction. I have a project in which I am looking to use a Sony FCB-H11 HD bock camera. I need to build a controller that will allow me to use 3 momentary rocker switches to control the zoom, iris and focus. It must be a standalone controller that is not connected to a PC. Here is a link to controller that is a sort of what I'm looking for: http://www.remotevisionsource.com/catalog.aspx?group=1317 Here is a link to the camera which uses VISCA (TTL signal level). http://pro.sony.com/bbsc/ssr/cat-industrialcameras/cat-highdefinition/product-FCBH11/