I could have sworn at some point you find a cache with your old bg1 gear in it ... all the remaining items that you don't find in the initial dungeon in Athkatla.
It's been a long time but I have a vague notion it was in the underdark but I'm not sure where, perhaps in the area just before you return to the surface? I also have the conflicting notion that it's supposed to be spellhold where you find your old equipment. My spellhold is modded to remove my existing bg2 equipment during the tests and you get it back just before fighting bohdi and irenicus perhaps I've supplanted the usual way things work but I'm at a loss for the time being.
It's been a long time but I have a vague notion it was in the underdark but I'm not sure where, perhaps in the area just before you return to the surface? I also have the conflicting notion that it's supposed to be spellhold where you find your old equipment. My spellhold is modded to remove my existing bg2 equipment during the tests and you get it back just before fighting bohdi and irenicus perhaps I've supplanted the usual way things work but I'm at a loss for the time being.