VR Hardware

Hello, I recently upgraded my PC to a 4090 and 13900K, now I’m considering trying out VR (mainly interested in this game specifically).

What would be a good FBT setup for me, if I’m looking to spend $1,500 at the most? I’m seeing the Index full kit with 3 of the Vive 3.0 trackers, is that what I should get or something else? And should I try to get any of it refurbished?

Do the trackers do a good job of guessing elbow and knee positions? Also for avatars, are most publicly available avatars rigged for full body and finger movement?

I know very little about VR and FBT in general, so any info is appreciated!