I went to a murdoch uni open day about this time last year and a young bloke about 23 years old made something like that. It had 4 propellers and had cameras in all of the gaps between the propellers. All up it had 4 cameras and he said he was going to start to sell them to the army. there was two sizes a small and a large. the large was 40 grand a pop

and the small one was about 25 grand

. Very expensive but the graphics were excellent.