Welcome to the forum! Just to sort of help you get a handle on the nomenclature around here, GOUT specifically describes the laserdisc master released as a bonus disc in 2006. As far as I know, the only versions are PAL and NTSC ones of the trilogy.
As far as what you’re getting at (fan made versions of the OT), if you’re including multiple versions of TN1’s, I guess you would include multiple versions of Harmy’s (or not the former).
The RoTJ Grindhouse is a Harmy release, not TN1. Yes, just the one.
There are the Dark Jedi restorations of the GOUT discs (I believe 1.0 - 3.0 of the whole trilogy, and the Team Blu release of SW). There are many laserdisc captures and probably some more things I’m not thinking of.