Update: I received the sunroof track, it looks to be the same size, but the glass on my truck is not bolted to the track. (no bolts through the glass) and there is a framework around the opening inside (kind of like a picture frame) covered in the same fabric as the headliner, This is screwed on from what appears the top side to the sunroof assembly. I don't think it will come off without the sunroof being open, which of course it won't do.

From what I can see underneath, the drive mechanism looks to be the same as what I have laying on the seat.

This may sound dumb but I got to ask... does the sunroof go into the roof, or does it lay on top when it opens?? The seal looks like it opens outside of the truck roof and clamps down into the frame when it closes.

My first LR and not many around to look at.