I would literally Pay for an Updated Version of this Project. Like if it was uploaded to the Unity Assetstore or similar.
Or even Revive the Patreon.
Or maybe to it like other Developers and make it an Addon of HurricaneVR instead of SteamVR like this:

https://assetstore.unity.com/packages/tools/network/multiplayer-kit-for-hurricane-vr-hvr-252683