that 747 nose gear vid is a rip off, the original is from a guy named Balleka on youtube, he is/was a B747F capt, and made quite a few very god videos. lots of gliding footage as well.
original is here, with acceptable soundtrack also.
my favourite. FE's
even this is cool, overtaking an MD11.
he made a making of video for the first vid, belly of the beast. but sadly it looks like he removed it, basically a camera, a contour, was taped on the nose gear leg, and he asked the ground engineer to start the camera on pushback for him.
Im pretty sure a gopro suction cup would not hold on above about 8000ft, something about the vacuum under the suction cap equalising with the outside air pressure. highest mine has held on for is 7500ft.