Its been a month since I last updated about my efforts to prepare to build some Astrahus Medium Citadels, so let's do that, shall we?
I stockpiled what I thought was the materials required to build three Astrahus citadels and moved them to a building system in high sec (yes, you can build Citadels in high sec NPC stations). At that time it was looking like medium citadels were going to cost around 1.2 to 1.5 billion just in materials to produce.
A week later on, I logged into SISI test server and started looking at the blueprints and discovered some discrepancies compared to the dev blog. Namely, I could not see where the new Structure Fuel Blocks were going to come into play in the construction process. I asked on twitter and was directed to the Structure channel on Tweetfleet slack and there someone pointed me to an updated version of the dev blog at EVE Guardian website. There I learned that the ratios of PI materials had changed and Structure Fuel Blocks were completely removed.
The latter was especially important because the price of Strontium Calthrates was skyrocketing and was a major driver in the price climb of the materials cost. Removing the fuel blocks brings my material cost down to the 830 million ISK range which seems more reasonable. It does mean I have a ton of extra supplies to sell back to the market but I'll take any loss as a cost of preparation for April 27th.
With more confidence in the requirements I started building the required structure components for the first citadel. Now all I need is that sweet Astrahus Blueprint.