What you need to do is go to Dragonscale Hills and kill Minos at the fort by the 1000s and/or do the daily tasks at the Fairy Tower for Rebel Brownie faction. The Fairy Tower is in the middle of the zone and when you enter it the quest giver is there and you go through the quest text until you get the part where you say "combat" you take the Rebel Brownie kill 10 Minotaurs task and then say "errands" and you take the steal something from the Minos for Rebel Brownie faction as well. These tasks can be done once per day and yield good exp for minimal effort plus you build faction.
At some point you will get the message that Your faction could not possibly get any better with Rebel Brownies on one of your Mino kills and is at this point that you can now run over to the "Cannon" (near the banker around the zone in area) and let the cannon shoot you up to Fort Mechantous. Then you run over (with invis on) and zone into The Steam Factory. Finding the Vendor Karri is easy if you shrink/invis. Just follow the instructions on how to get to her posted already on Alla under her name. Just search for Karri