I mounted the ISO with Deamon Tools, put the 00000.mpls playlist file into TS Muxer (v 2.6.12) and everything demuxed just fine. Then I tried creating a BD folder and it also went ok. But MKV Merge does seem to freeze up for some reason, so that kind of sucks but I have no idea what could be the problem there.
As to the documentary, no I'm not planning a doc like that about ESB or ROTJ at the moment.