Paradox part 2 is out! http://www.dlsite.com/maniax/work/=/product_id/RJ201109.html
To merge the two chapters, all you have to do is copy the Graphics/Pictures directory from the old game to the new one.
To copy over your saves, copy the entire Save directory (not just a single save file) from the old game to the new one.
Bad news: currently dead in the water waiting on a fix for the translation program so that it’ll work with part 2. We’re also going to need to do some major reformatting to apply the translation to the new files, which is going to require more changes to the translation program, some scripting, and probably a lot of manual effort.