yes thats what you need. You also probably don't need the gold tipped rca cable. I'd just get like a 16 foot rca cable. You can buy just the video. Usually the dual ones are for audio.. both channels and the triple ones are for audio/video. No need to spend more cash when you don't have to.
you can run rca cable like 50 feet without a problem.. i'm sure you don't have to run it that far.