3) I always assumed it was Talana up to and including the dream scene, and not Talana after that.
6) My backpack is full as it is.
Don't take experience; there are respawning opponents you can use if you want XP (limited places in the D2:ED section, multiple in FoV [that are stronger and give more XP]). Either the skill point or 4 stat points would be fine, depending on what your character most needs at the time. I took the skill point, since after level 15 I stopped distributing stat points (at first because I didn't have an obvious need to boost a particular stat, so was holding them in reserve, and then later to keep things interesting [was already playing on nightmare]).