Kari-Mar: It IS possible to get the magic door here. The idea is that you will be able to create ONE only at a time. Get the troll to work until the workshop is full, use any one item and the next item created will be a magic door. Maybe it was meant this way. More important is relocating the destroy walls spell here since it is impossible to get to it before the enemy keeper does, leaving one of the western goodies pathways inaccessible until you have defeated the enemy keeper. Disease is also difficult to get to.
Fix all the obvious mistakes but don't add soe since the deeper dungeons were meant to be harder without soe. Will have to test Daka-Gorn to see if dragons/final party changes are needed.