Need Fate/Stay Night 2006 anime production information.

[Hollow Of Dawn]

Hello, I'm Hollow Of Dawn and I run a YouTube channel as a hobby making anime reviews/other content. I'm currently planning to make a "years later" retrospective about the 2006 Fate/Stay Night anime but have no real sources I can glean from regarding its production (or at least no sources that are available in English). I've made Fate-related content in the past (a few may have seen them?), including a review series of the VN, but this planned project requires knowledge that is beyond me at the moment.

The Type-Moon wiki has little info I can find, so I've made an account here for the sole purpose of this endeavor as I've relied on this place in the past for patches/installation guides for Fate/Stay Night and Hollow/Ataraxia.

Hopefully the much needed information I need can be provided here as I've had this video idea for years now.

[Best Girl]

Ya, these kind of niche Internet documentaries are notoriously hard to make well.
They are usually labours of love, if you want to make it well.

From what I have seen, people usually attack from a primary source and expand from there.
In other words, you should reach out to ex-Studio Deen or Geneon employees or voice actors to see if any of them want to speak to you and give you some directions.