WHOA
what a load of questions...I cannot answer all of them but I'll have a go
1. Yes I think so
2. Yes
3. No idea didn't play the game
4. It is in the City Gate Area, in the Inn there is a secret door. Go through and you'll find it
be prepared to fight...
5. Yes, it is possible but you need some pure Illithium Ore which you can obtain when doing the Sir Sarles quest (you get it in the Temple district after doing the Unseeing Eye quest)
6. No sorry, try using Infinity Explorer...or ask Memnoch
7. Haven't played the game for ages.... Rikard???
8. and 9. Sorry mate, haven't got a clue...
Hope my meager knowledge has at least helped a little
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Melusine, Archbabe of the OHF and the LH
Your voice is ambrosia