OK, it seems like getting what you want requires some "hacking" and additional stuff installed. While this can be great stuff and huge success when finally getting it to work, keeping the systems updated and patched (and patchable!) with these hacks will most likely be a pain in the ass in the long run. The extra hour spent on "manual identity management" (which you can document thoroughly by spending another hour on it) may well be worth it in the end.