The Github repo is here: https://github.com/apple/ml-mgie
https://instances.vantage.sh/?min_gpus=1 (wait for it to finish loading to filter)
You could try running these in Google Collab (though tweaks would have to be made to load the files), or you might try something like runpod.io, as well, which gets you GPU instances for a lot less than you'd pay with AWS - for example, a Tesla V100 (16GB) community cloud instance runs you $0.24/hr vs the g5g.xlarge which runs you $0.42/hr.