I could give some tips on how to reduce the costs of crafting the grandmaster sets. Only I'm not sure where, I was thinking about the Master Master Master Master! quest article but I think it's best I ask.
Sort of, or make it a table. For instance, if you know players can buy X item for Y from one vendor versus Z at another, we could easily do a table format for it and have notes on the page to further explain it and any irregularities (like if certain quests are done that make vendor unavailable, prices go up, etc.).
That's not exactly what I had in mind, there are no better prices for Eriched dimeritium or Infused slyzard hide as only Lazar sells them. I'm talking about making pre-preparations so you don't have to fork over 34k on the materials alone. With my tips it costs around 10-15k, now thats still a lot but you can forge 2 or 3 sets at the price of one.
I have been thinking and I believe the best solution will be explaining where to get the materials on their individual articles, while just explaining what is required on the quest article. Else the article would be more about instructions on materials than a quest walkthrough.