Since playing the demo, I've not thought much about anything else! Unfortunately my PC isn't good enough to run it at a decent resolution and specs.
Is there any chance you could add the game to geforce Now. There's an Install to play option or full support.
There's a Steam doc here that go through the Steam process for opting in:
https://partner.steamgames.com/doc/features/cloudgaming
Thanks, and congrats on this smashing game!