Yes, it is available but Item forge is a Wizard's Tower Three enhancement, so you will need to build up to that first. That will likely take longer then most of the early campaign scenarios tend to last. Note that it was added in AoW:Shadow Magic, while the page you linked to was created for AoW II: Widard's Throne and not subsequently updated.
ChowGuy - The LaChoy Dragon - Servant of the Tiger and disciple of the Wanderer
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