>>352394227
I did exactly that before getting Index but used iVRy + Driver4VR instead of Trinus. It's definitely good enough to play VRChat and demo some less intensive games that don't require precision. I'd say it's worth your time if you want to hang out with people on VRChat. 
I like tinkering with janky stuff like this so it was fun for me, but you might not like it if you want things to just work.