In principle, we can pull content from Windchill in response to an item (modelItem) tap, and render it in the Vuforia experience. This functionality is not available out of the box, however, so you would either need to do a fair amount of development work yourself, or partner with a company that does this kind of thing. My company, EAC, does this, and I know there are others who do custom Vuforia development as well.
We (EAC) have experience taking structured DITA content and using the markup to identify procedure steps and "walk through" them in an AR experience. The example you sent is a topic with numbered lists, rather than a formal task topic with <step> elements, so that might complicate the process of dynamically building a step walk-through, but we can probably determine a set of rules for identifying steps that will work for your authoring style.
If you are interested in hiring someone to help with this, please PM me and I can set you up with a scoping call to review your use case and get you an estimate of what it would cost for us to build a solution for you.
