So glad I did this! Redoing the string.xml took a couple days, but once done, the app practically wrote itself. The front end isn't going to change much, but the underlying code is SO much easier to maintain now.
Basic navigation actually works, drill down and up through the app with ease. Bookmarks -- which took at few weeks to write and debug -- took about half a day to create under the new code.
Just want to spend a few days playing with it, maybe see if I get any inspirations for new features, and I'll release it.