Thanks for the confirmation, Peter2. I'm writing down the locations of the UPOs as I find them - I found 2 of them in the AFT storage sector of the Pyramids, but haven't really been back to them for awhile since 'freeing' the fountain of youth.
I'm currently going ultra-slowly through the Maze of Hell, trying to take out Minotaurs one at a time, resting, casting heroism/powershield and other buffings before continuing, hoping that they won't come at me in numbers. Its slow progress, but necessary since these dire Mino monstrosities can eradicate with one hit! 
