Video that stuff ! You do have a “crowd” watching you lol ! It us
Can you put that whole rear axle assembly back together, get the bike rear end up just a tad by putting a 2x6 under the center stand feet(might help) one centerstand foot at a time at this point..? Get behind the bike and wrangle the chain back over the axle before lifting the wheel to slot height.. shove that wheel all the way forward in the axle slots, then put the chain back on the sprocket. Slide it all rearward to position it all together again