Fender introduced Candy apple red color not before 1963, besides, the pick guard screw between neck and middle pickups was moved closer to the middle pickup (like the guitar of the video) around June 1963. So this is a 1963 or later stratocaster, not a 1961
the guitar is all original exept a later 60's pickguard (probably a '63) , an overspray on the neck and a soldering on the latest tone knob to have the tone on bridge pickup