Hi Henry.. I did this before. I streamed from four HD cameras before. I have the latest raspberry and beaglebone and tens of their accessories.. cams, BTs, wifis, 3gs, LCDs, and many others. I developed more than $50,000 of SBCs apps and capes under eLance. I am not sure about your currency but budget for this is $3,500 USD not negotiable.