Well, there is a Blu-ray-release, you can get it at play-asia, for example:
https://www.play-asia.com/persona-super-live-p-sound-bomb-2017-witness-the-harbors-crime/13/70c5zb
I actually got it for Christmas so I could upload a rip, if you're interested. It's quite long though so I estimate it would be beyond 7GB.
I'd love that! I've been listening to this soundtrack non-stop lately and it's just a blast. Thank you very much for your work!