I'm in the US. The most I could prolly make out of the R4s is title cards... although someone is uploading the original batch of R1s, and someone else is uploading the R2s, so mostly I'm just waiting around. I have managed to acquire the one Trunks disc I need, as well as 3 others.
The dub on the R4s is the same dub as the R1s - unfortunately. So for audio, it really won't help. And for video, it won't really help either - although another person is working on a version from the PAL DVDs - I would rather work from NTSC.
I may yet be able to do one episode from the current batch, depending on if I am right about it being on the discs I have already managed to source - "The Last Defense", #144/159. Without title card patches I can do a few more; my R2 source is up to 204/219 ("Energy Drain") but a lot of those episodes are missing recaps and previews, and several are even incomplete for the main episode.
The eps which I can complete, with or without title card replacements or paintovers, using Saban-relative ep numbers (i.e., 108 not 123): 108-112, 114, 144, 147, 151-152, 154, 156, 187, 189, 192-194.
When more DVD source arrives I can also complete likewise: 221, 226-227, 229-230, 232-248, 250-254, 256-268.
The following episodes are missing portions of the episode themselves:
145/160 Cell is Complete
175/190 The Horror Won't End
176/191 Save the World
177/192 Goku's Noble Decision
183/198 Final Round
184/199 Goku vs. Pikkon
185/200 Gohan Goes to High School
186/201 I Am Saiyaman
188/203 Rescue Videl
190/205 I'll Fight Too!
197/212 Best of the Boys
204/219 Energy Drain
223/238 Evil Lives On
224/239 Find the Dragon Balls
227/242 Learn to Fuse (small gap between pieces of the episode)
Unfortunately, there seems to be no source better than what has been unearthed already at Cartoon-World's forums (which has yielded several complete episodes already that have been elusive).
I have the proper eyecatch for episodes 185/200 and onward (it's the Japanese one with new BGM).