I'll admit I've got a jones to restore ESB and Jedi, hence this project, but I have no time to do so, so don't let that stop you! I'm working on my own films at the moment. Also, I don't have good copies of the ESB and ROTJ special editions yet ...
Have you checked out this thread.
The GKar release is pretty good as you know but the TB Release is equal to it and it is all in English too......
As usual, a few basic details can be found here.
I am sure that your usual sources would be able to get you these releases.