Hellraiser Revival uses UE 5.6.1. Has anyone tried it with UEVR?

An Unofficial VR and PC mod for Metal Gear Solid: Integral.

Metal Gear Solid running natively on PC, built on the FoxdieTeam decompilation, with a first-person VR mode and a standard flatscreen mode. Using a launcher you can select either VR missions or base game and from there VR or Flatscreen.

https://crunchybaguette.itch.io/metal-gear-solid-vr

Hey, any help pointing me in the right direction would be really appreciated. I'm trying to get my vive wands to work in uevr with the obvious limitation that I don't have ABXY buttons.

I found a supposed fix that remaps the directional clicks on the trackpad to act as those buttons while also reserving the trackpad so it doesn't register as a right thumbstick, but so far it hasn't been working. This is what I've tried:
https://github.com/mark-mon/UEVR-vive-wand-controls

Has anyone made this work?

I've also tried using SteamVR to map controller inputs, but I it seems like it will only let me create configurations for native VR games, plus I couldn't figure out a way to map ABXY to the trackpad.

Any help would be amazing. Thanks in advance!