Since you want to keep both Eng and Jap, it's going to be harder. You're not going to lose all 3 angles if you use the strategy I described. You will make it one angle, putting episode 2 right after episode 1. The only requirement is you will need lots of HD space. The key is to save project first before stripping so you can go back and start over, unless you increase the Undo history under Options menu depending on how much memory you have. The safest way is to save project.

It's hard to describe without knowing the structure of the dvd. If you feel technically challenged, load up the zipped ifos (I don't need bups) with the menus converted to still. Remove the audio from the menu also to reduce filesize. Upload the zip file somewhere. I'll take a look.

Would you specify which cells these belong to, something like:
08 End credits (2 angles e/j) - pgc1:c12,c13